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Generalized large optics fabrication multiplexing J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2022-01-01 Daewook Kim,Xiaolong Ke,Weslin Pullen,Tianyi Wang,Heejoo Choi,Vipender Singh Negi,Lei Huang,Mourad Idir
High precision astronomical optics are manufactured through deterministic computer controlled optical surfacing processes, such as subaperture small tool polishing, magnetorheological finishing, bonnet tool polishing, and ion beam figuring. Due to the small tool size and the corresponding tool influence function, large optics fabrication is a highly time-consuming process. The framework of multiplexed
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Comments about dispersion of light waves J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2022-01-01 Hervé C. Lefèvre
Dispersion of light waves is well known, but the subject deserves some comments. Certain classical equations do not fully respect causality; as an example, group velocity vg is usually given as the first derivative of the angular frequency ω with respect to the angular spatial frequency km (or wavenumber) in the medium, whereas it is km that depends on ω. This paper also emphasizes the use of phase
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Precise spectrophotometric method for semitransparent metallic thin-film index determination using interference enhancement J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-12-21 Shurvinton, Riley, Lemarchand, Fabien, Moreau, Antonin, Lumeau, Julien
A precise spectrophotometric method to determine the refractive index of a semitransparent metallic thin film is presented. This method relies on interference enhancement of the measured spectra, employing an opaque substrate with a dielectric spacer layer beneath the absorbing layer of interest to create interference fringes.The resulting spectral oscillations of the stack are highly sensitive to
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Drastic advancement in nanophotonics achieved by a new dressed photon study J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-12-20 Sakuma, Hirofumi, Ojima, Izumi, Ohtsu, Motoichi, Kawazoe, Tadashi
A timely review of the emerging new phase of dressed photon (DP) studies, not yet prevailing in the global nanophotonic society, is given in contradistinction to its preceding incipient phase. A new theory on DPs crucially depends on a couple of important elements, namely, the knowledge on quantum field theory (QFT) having infinite degrees of freedom, notably on the micro-macro duality (MMD) theory
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Simple method to evaluate the pixel crosstalk caused by fringing field effect in liquid-crystal spatial light modulators J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-12-19 Moreno, Ignacio, Sánchez-López, María Del Mar, Davis, Jeffrey A., Cottrell, Don M.
In this work we provide a simple experimental method to measure and evaluate the pixel crosstalk in phase-only liquid-crystal displays caused by the fringing field effect. The technique is a reverse engineering method that does not require information about the microscopic physical parameters of the liquid-crystal material or details of the fabrication and electronics of the display. Instead, it is
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Fabrication of a light-emitting device based on the CdS/ZnS spherical quantum dots J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-12-13 Hasanirokh, Kobra, Asgari, Asghar, Mohammadi, Saber
In this work, we focus on the colloidal quantum dot based light-emitting diodes (QD-LEDs) performance. First, we synthesize the spherical QDs with a CdS core that covered with a wider band gap II–VI semiconductor acting as a shell (ZnS). In order to synthesize this nano crystal QDs with structure of CdS/ZnS/CdS/ZnS, we use a reverse micelle process. These four-layer quantum well quantum dots (QWQDs)
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Effect of various additives on aluminum oxide thin films prepared by dip coating, thermal behavior, kinetics and optical properties J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-12-02 Bouzbib, Mohammed, El Marouani, Maryam, Sinkó, Katalin
Aluminum oxide thin films attract research interest due to their properties. Aluminum acetate was used as an Al source with acetic acid, oxalic acid, and nitric acid as additives. The transmittance and the thickness of the films strongly depend on the additives, with the approximate bandgap energy changing from 5 ev to 5.4 ev. The aluminum oxide film deposited by dip-coating is presented great uniform
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Lossy mode resonances in photonic crystal fibers J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-11-22 Sicacha, Mauricio Salazar, Minkovich, Vladimir P., Sotsky, Alexander B., Shilov, Artur V., Sotskaya, Luidmila I., Chudakov, Evgeny A.
The interaction effect of the fundamental mode in a special photonic crystal fiber (PCF) with a thin-film absorbing coating deposited on a surface of a fiber cladding on the optical transmission of the PCF is theoretically studied. It is shown that the transmission has a multi-peak spectrum that is determined by the resonance capture of the fundamental PCF mode energy by the coating. In some cases
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Optical vortices in waveguides with discrete and continuous rotational symmetry J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-11-16 Pryamikov, Andrey, Hadzievski, Ljupco, Fedoruk, Mikhail, Turitsyn, Sergei, Aceves, Alejandro
Coherent vortex structures are fascinating physical objects that are widespread in nature: from large scale atmospheric phenomena, such as tornadoes and the Great Red Spot of Jupiter to microscopic size topological defects in quantum physics and optics. Unlike classical vortex dynamics in fluids, optical vortices feature new interesting properties. For instance, novel discrete optical vortices can
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Realization of a polarization-insensitive optical frequency-domain reflectometer using an I/Q homodyne detection J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-10-19 Jderu, Alin, Soto, Marcelo A., Enachescu, Marius, Ziegler, Dominik
We report on the development and implementation of an optical frequency-domain reflectometer (OFDR) sensing platform. OFDR allows to measure changes in strain and temperature using optical fibers with a length of several tens of meters with very high spatial resolution. We discuss the operation principles and challenges to implement an OFDR system using optical homodyne detection based on a dual-polarization
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Correction to: Electromagnetic waves scattering from a sphere of complex conjugate medium J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-10-13 Illahi, Ahsan, Bashir, M., Alkanhal, Majeed A. S., Khatoon, Sadia, Ghaffar, Abdul, Khan, Y.
Correction to: J. Eur. Opt. Soc. Rapid Publ. 15, 10 (2019) https://doi.org/10.1186/s41476-019-0107-2 Following publication of the original article [1], the authors informed us that the #2 and #3 affiliation had a typo error. The author affiliation has been updated above and the original article [1] has been corrected. 1. Illahi, et al.: J. Eur. Opt. Soc. Rapid Publ. 15, 10 (2019). https://doi.org/10
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Methodology of optimisation for a nanostructured two-photon absorption photodetector J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-09-18 Dauphin, Maxence, Fix, Baptiste, Jaeck, Julien, Haïdar, Riad
We introduce a 3-step method to optimise a nanostructured photodetector for infrared sensing through non degenerated two-photon absorption (NDTPA). First, the nanostructure is designed to tailor the distribution and concentration of both pump and signal intensities within the absorbing layer, thus leading to a gain in two-photon absorption. Second, the issue of the competition between NDTPA and other
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Autocompensating measurement-device-independent quantum cryptography in space division multiplexing optical fibers J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-09-09 Liñares, J., Carral, G. M., Prieto-Blanco, X., Balado, D.
Single photon or biphoton states propagating in optical fibers or in free space are affected by random perturbations and imperfections that disturb the information encoded in such states and accordingly quantum key distribution is prevented. We propose three different systems for autocompensating such random perturbations and imperfections when a measurement-device-independent protocol is used. These
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Comparison of different calibration techniques of laser induced breakdown spectroscopy in bakery products: on NaCl measurement J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-09-01 Bilge, Gonca, Eseller, Kemal Efe, Berberoglu, Halil, Sezer, Banu, Tamer, Ugur, Boyaci, Ismail Hakki
Laser induced breakdown spectroscopy (LIBS) is a rapid optical spectroscopy technique for elemental determination, which has been used for quantitative analysis in many fields. However, the calibration involving atomic emission intensity and sample concentration, is still a challenge due to physical-chemical matrix effect of samples and fluctuations of experimental parameters. To overcome these problems
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Terahertz absorption characteristics of guar gum determined via microfluidic technology J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-08-11 Zhang, Feng-Xuan, Wang, Guo-Yang, Huang, Hai-Yun, Chen, Meng-Han, Zhang, Si-Jia, Su, Bo, Zhang, Cun-Lin
The vibrational energy levels of many biomolecules correspond to the terahertz band; thus, terahertz technology can be used to identify these substances. Moreover, as the biological activity of most biomolecules can be observed only in aqueous solution, the characteristics of such biomolecules must be studied in aqueous solution. In this study, a simple microfluidic chip, a temperature control device
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Graphene saturable absorbers applications in fiber lasers J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-08-03 Peng, Xi, Yan, Yixin
Two-dimensional materials are widely used in a variety of fields, such as medical treatment, industrial preparation, machining, etc. In this review, we have made a detailed description of the development of fiber lasers as well as the evolution of two-dimensional materials, especially graphene. In addition, we describe the optical properties of graphene and its preparations, for instance, chemical
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Integrable solution for light shaping based on a Fourier-pair mapping J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-07-26 Liangxin Yang, Irfan Badar, Christian Hellmann, Frank Wyrowski
In far-field light shaping, one of the design methods is based on a one-to-one map between the irradiance of the source and target. However, an integrability issue may occur in this kind of algorithms, either in the ray mapping method for designing a freeform surface or in those geometric-optics-based methods for achieving a required output phase. We introduce another mapping-type algorithm to tackle
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Binary defocusing technique based on complementary decoding with unconstrained dual projectors J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-07-10 Xuexing Li, Wenhui Zhang
Binary defocusing technique can effectively break the limitation of hardware speed, which has been widely used in the real-time three-dimensional (3D) reconstruction. In addition, fusion technique can reduce captured images count for a 3D scene, which helps to improve real-time performance. Unfortunately, it is difficult for binary defocusing technique and fusion technique working simultaneously. To
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Design of a phosphor-converted LED based lighting system considering both the lighting and color uniformity J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-06-30 Jinren Yan
In this work, a scheme of combining an aspheric reflector and a primary packaging freeform lens in phosphor-converted lighting-emitting diode (pc-LED) based lighting system design was developed. In contrast to most of previous works in which the color and illumination uniformity of the pc-LED lighting systems were improved one by one, the developed scheme can improve both indicators simultaneously
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Assessment about Luneberg integrals and application to digital in-line holography J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-06-30 S. Coëtmellec, D. Lebrun, M. Brunel, A. J. E. M. Janssen
In this publication, the Luneberg integrals are revisited and the conditions of the using of such integrals have been recalled. Additivity law of Luneberg’s integrals and the link with the Frenel kernel for the propagation are discussed. By means of the definition of the Luneberg’s integrals, the propagation of a vectorial electromagnetic field (Hertz potentials) is developed and a new approach of
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Metamaterials subwavelength terahertz resonant cavities J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-06-16 M. Al-Rubaiee, A. H. Al-Janabi, S. C. Fleming, A. Argyros
One of the unique properties of metamaterials is the ability to manipulate electromagnetic waves at subwavelength scales, made possible by their structure on these scales. Here, rather than consider effective bulk properties, we consider the properties of microscopic features based on considering resonant unit cells. We used wire array metamaterials to form localized resonant cavities by changing the
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Stimulated Raman scattering simulation for imaging optimization J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-06-16 Liron Zada, Bart Fokker, Heather A. Leslie, A. Dick Vethaak, Johannes F. de Boer, Freek Ariese
Two simulation programs of a stimulated Raman scattering microscopy (SRS) imaging system with lock-in amplifier (LIA) detection were developed. SRS is an imaging technique based on the vibrational Raman cross-section as the contrast mechanism and enables fast, label-free imaging. Most SRS implementations are based on LIA detection of a modulated signal. However, building and operating such SRS set-ups
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Quantum dash multi-wavelength lasers for Tbit/s coherent communications and 5G wireless networks J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-06-13 Zhenguo Lu, Jiaren Liu, Youxin Mao, Khan Zeb, Guocheng Liu, Philip J. Poole, John Weber, Mohamed Rahim, Grzegorz Pakulski, Chunying Song, Martin Vachon, Pedro Barrios, Daniel Poitras, Shurui Wang, Weihong Jiang
We report on the design, growth, fabrication, and performance of InAs/InP quantum dash (QD) multi-wavelength lasers (MWLs) developed by the National Research Council (NRC) Canada. The key technical specifications investigated include optical and RF beating spectra, relative intensity noise (RIN), and optical phase noise of each individual wavelength channel. Data bandwidth transmission capacity of
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A new route for caesium lead halide perovskite deposition J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-06-02 Naomi Falsini, Andrea Ristori, Francesco Biccari, Nicola Calisi, Giammarco Roini, Paolo Scardi, Stefano Caporali, Anna Vinattieri
Inorganic metal halide perovskites are relevant semiconductors for optoelectronic devices. The successful deposition of thin films of CsPbBr3 and CsPbCl3 has recently been obtained by Radio-Frequency magnetron sputtering. In this work we compare the morphological, structural and optical characteristics of the two materials obtained with this deposition technique. A detailed photoluminescence (PL) spectroscopy
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Raman spectroscopic detection of interleukin-10 and angiotensin converting enzyme J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-04-20 Shuo Zhang, Frederieke A. M. van der Mee, Roel J. Erckens, Carroll A. B. Webers, Tos T. J. M. Berendschot
In this report we present a confocal Raman system to identify the unique spectral features of two proteins, Interleukin-10 and Angiotensin Converting Enzyme. Characteristic Raman spectra were successfully acquired and identified for the first time to our knowledge, showing the potential of Raman spectroscopy as a non-invasive investigation tool for biomedical applications.
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Fabrication of perfect plasmonic absorbers for blue and near-ultraviolet lights using double-layer wire-grid structures J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-04-20 Atsushi Motogaito, Ryoga Tanaka, Kazumasa Hiramatsu
This study proposes using double-layer wire-grid structures to create narrow-band, perfect plasmonic absorbers, which depend on polarization, for the short-wavelength visible and near-ultraviolet regions of the electromagnetic spectrum. A rigorous coupled-wave analysis reveals that the maximum absorption attained using Ag and Al is ~ 90% at 450 and 375 nm. Experiments using Ag yielded results similar
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Transient dynamical-thermal-optical system modeling and simulation J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-04-06 Luzia Hahn, Peter Eberhard
In modern high resolution optical systems like astronomical telescopes or lithographic objectives, performance degradations can be caused by various disturbances. Holistic optical system simulation is required to predict the performance or the high precision systems. In this paper a method for transient dynamical-thermal-optical system modeling and simulation is introduced. Thereby, elastic deformation
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Nano-imprinted subwavelength gratings as polarizing beamsplitters J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-03-24 Julian Wüster, Yannick Bourgin, Patrick Feßer, Arne Behrens, Stefan Sinzinger
Polarizing beamsplitters have numerous applications in optical systems, such as systems for freeform surface metrology. They are classically manufactured from birefringent materials or with stacks of dielectric coatings. We present a binary subwavelength-structured form-birefringent diffraction grating, which acts as a polarizing beamsplitter for a wide range of incidence angles −30∘…+30∘. We refine
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Crystallization behavior of ion beam sputtered HfO2 thin films and its effect on the laser-induced damage threshold J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-03-06 Zoltán Balogh-Michels, Igor Stevanovic, Aurelio Borzi, Andreas Bächli, Daniel Schachtler, Thomas Gischkat, Antonia Neels, Alexander Stuck, Roelene Botha
In this work, we present our results about the thermal crystallization of ion beam sputtered hafnia on 0001 SiO2 substrates and its effect on the laser-induced damage threshold (LIDT). The crystallization process was studied using in-situ X-ray diffractometry. We determined an activation energy for crystallization of 2.6 ± 0.5 eV. It was found that the growth of the crystallites follows a two-dimensional
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Correction to: Design of high performance and low resistive loss graphene solar cells J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-01-28 Kourosh Rezaei, Mohammad Sabaeian, Yaser Hajati
An amendment to this paper has been published and can be accessed via the original article.
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Improvement of the optical properties after surface error correction of aluminium mirror surfaces J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2021-01-04 M. Ulitschka, J. Bauer, F. Frost, T. Arnold
Ion beam finishing techniques of aluminium mirrors have a high potential to meet the increasing demands on applications of high-performance mirror devices for visible and ultraviolet spectral range. Reactively driven ion beam machining using oxygen and nitrogen gases enables the direct figure error correction up to 1 μm machining depth while preserving the initial roughness. However, the periodic turning
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A predictable smoothing evolution model for computer-controlled polishing J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-11-25 Jing Hou, Pengli Lei, Shiwei Liu, Xianhua Chen, Jian Wang, Wenhui Deng, Bo Zhong
Quantitative prediction of the smoothing of mid-spatial frequency errors (MSFE) is urgently needed to realize process guidance for computer controlled optical surfacing (CCOS) rather than a qualitative analysis of the processing results. Consequently, a predictable time-dependent model combining process parameters and an error decreasing factor (EDF) were presented in this paper. The basic smoothing
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Fabrication-friendly polarization-sensitive plasmonic grating for optimal surface-enhanced Raman spectroscopy J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-11-07 Arpan Dutta, Tarmo Nuutinen, Khairul Alam, Antti Matikainen, Peng Li, Eero Hulkko, J. Jussi Toppari, Harri Lipsanen, Guoguo Kang
Plasmonic nanostructures are widely utilized in surface-enhanced Raman spectroscopy (SERS) from ultraviolet to near-infrared applications. Periodic nanoplasmonic systems such as plasmonic gratings are of great interest as SERS-active substrates due to their strong polarization dependence and ease of fabrication. In this work, we modelled a silver grating that manifests a subradiant plasmonic resonance
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3D flame reconstruction and error calculation from a schlieren projection J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-09-03 C. Alvarez-Herrera, J. L. Herrera-Aguilar, D. Moreno-Hernández, A. V. Contreras-García, J. G. Murillo-Ramírez
In this work a 3D flame reconstruction is performed from a 2D projection of the hot gases of a combustion flame. The projection is obtained using an optical schlieren technique. In this technique, a schlieren image is integrated linearly to obtain the hot gases, and then, a temperature field. Each row of the matrix representing the temperature distribution is fitted with a specific function, and its
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Correction to: Mid-spatial frequency error generation mechanisms and prevention strategies for the grinding process J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-08-20 Mario Pohl, Olga Kukso, Rainer Boerret, Rolf Rascher
An amendment to this paper has been published and can be accessed via the original article.
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Mid-spatial frequency error generation mechanisms and prevention strategies for the grinding process J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-08-03 Mario Pohl, Olga Kukso, Rainer Boerret, Rolf Rascher
The research presented in this paper is focused on the link between manufacturing parameters and the resulting mid-spatial frequency error in the manufacturing process of precision optics. The goal is to understand the generation mechanisms of mid-spatial frequency errors and avoid their appearance in the manufacturing process. Also, a simulation which is able to predict the resulting mid-spatial frequency
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Hermitian and non-Hermitian shortcuts to adiabaticity for fast creation of maximum coherence and beam splitting J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-07-11 Kai Tang, Zhengfeng Hu, Xi Chen, Chengpu Liu
We theoretically exploit the shortcuts to adiabaticity (STA) technique in Hermitian and non-Hermitian quantum systems to realize the maximum coherence and beam splitting by eliminating the nonadiabatic coupling. Compared with the conventional adiabatic passage (AP) technique with the Gaussian and Allen-Eberly schemes, the operation time can be significantly shortened by three order using STA technique
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Transverse electric surface waves in ferrite medium surrounded by plasma layers J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-07-08 M. Umair, A. Ghaffar, Majeed A. S. Alkanhal, Ali H. Alqahtani, Y. Khan
The theoretical analysis of transverse electric surface waves in ferrite medium surrounded by isotropic plasma layers is presented in this manuscript. Maxwell’s equations in differential form are used, and we impose the boundary conditions to acquire the dispersion relation to formulate the proposed structure. The influence of number density, separation distance between the layers of plasma, and dielectric
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Macro to nano specimen measurements using photons and electrons with digital holographic interferometry: a review J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-06-29 María del Socorro Hernández-Montes, Fernando Mendoza-Santoyo, Mauricio Flores Moreno, Manuel de la Torre-Ibarra, Luis Silva Acosta, Natalith Palacios-Ortega
Today digital holographic interferometry (DHI) is considered a modern full-field non-destructive technique that allows generating 3D quantitative data of a wide variety of specimens. There are diverse optical setups for DHI that enable the study of specimens in static and dynamic conditions: it is a viable alternative to characterize a wide diversity of parameters in the micro and macro world by conducting
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Dual parameter measurement system for temperature and stress based on Sagnac interferomter J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-06-19 Huanhuan Yan, Li Wang, Songtao Li, Jin Wang
The sensor is designed by combination of photonic crystal fiber (PCF) and fiber Bragg grating (FBG), which is based on Sagnac interferometer to measure temperature and stress simultaneously in changing environment. The interference between two parameters is avoided by cascading two wavelength moving reverse components in this sensor system. When the PCF is connected with FBG or not, the linearity of
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Design of high performance and low resistive loss graphene solar cells J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-06-16 Mohammad Sabaeian, Yaser Hajati
Despite metallic plasmonic excitations can enhance the performance of ultra-thin solar cells however these so-called plasmonic solar cells suffer from a large resistive (Ohmic) loss caused by metallic elements. In this work, we report on a new design that uses graphene nanoribbons (GNRs) in a two-dimensional (2D) grating form at the top of the semiconductor-on-insulator (SOI) solar cells aimed to reduce
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Complimentary code keying of spectral amplitude coding signals in optical buffering with increased capacity J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-06-03 Kai-Sheng Chen, Wien Hong
Signal buffering services such as contention resolution and congestion avoidance are essential in optical packet switching networks. In this paper, an optical memory scheme based on spectral amplitude coding (SAC) and complementary code keying (CCK) is proposed to increase the buffer capacity. CCK is applied to packet buffering by selecting an available code set and encoding the payload bits with either
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Full-chain modeling and performance analysis of integral imaging three-dimensional display system J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-05-26 Ying Yuan, Xiaorui Wang, Yang Yang, Hang Yuan, Chao Zhang, Zhenshun Zhao
The full-chain system performance characterization is very important for the optimization design of an integral imaging three-dimensional (3D) display system. In this paper, the acquisition and display processes of 3D scene will be treated as a complete light field information transmission process. The full-chain performance characterization model of an integral imaging 3D display system is established
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On the average secrecy capacity for indoor visible light communication systems J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-05-11 Jun Zheng Zhang, Ke Ke
For visible light communication (VLC), the light signals are transmitted without optical fibers or any sort of wave-guiding. Due to the inherent broadcast nature, physical-layer security emerges as a promising method to protect information delivery from eavesdropping. As for the secrecy capacity of VLC channel, there exist two features. In one way, the limited optical power makes the common capacity
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Research on optical 32QAM-OFDM-PON access scheme with different numbers of sub-carriers using DMT modulation J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-05-06 Yufeng Shao, Ying Long, Anrong Wang, Zefu Tan, Guoping Lei, Zhengquan Hu, Yu Liu, Qinzheng Hu, Zhuang Wang, Jie Yang
An optical 32QAM-OFDM-PON system with different numbers of sub-carriers using discrete multitone (DMT) modulation and demodulation is designed and demonstrated by experiment. Electron-optic generation, directly photoelectric detection, and electrical self-mixing reception of 32QAM-OFDM downstream signals are achieved. 5Gb/s 32QAM-OFDM downlink signals with different numbers of sub-carriers are successfully
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Construct freeform surface directly in an initial layout of an off-axis reflective image system by seed curve extension and simulated annealing algorithm J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-04-19 Hongxiang Pan, Zhouping Su, Yangliu Zhang, Tao Wu
In this paper, a method of how to construct a freeform surface directly in an off-axis reflective image system is proposed. The method includes both the seed curve extension algorithm and simulated annealing algorithm. Firstly, the sample points on the unkown freeform surface were be obtained quickly by the seed curve extension algorithm. Then the continuity of the freeform surface is evaluated by
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Spatial localization of hotspots in Fano-resonant plasmonic oligomers for surface-enhanced coherent anti-Stokes Raman scattering J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-04-09 Arpan Dutta, Erik M. Vartiainen
Realization of Fano resonance in plasmonic oligomers is often exploited to design efficient plasmonic substrates for surface-enhanced coherent anti-Stokes Raman scattering. Disk-type Fano-resonant plasmonic oligomers are widely used to enhance the Raman signal of the probe material. Generally, hot spots are generated in those oligomers at different spatial locations at different wavelengths and only
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Design and performance analysis of integrated focusing grating couplers for the transverse-magnetic TM00 mode in a photonic BiCMOS technology J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-04-08 Galina Georgieva, Karsten Voigt, Anna Peczek, Christian Mai, Lars Zimmermann
Focusing grating couplers for the excitation of the fundamental transverse-magnetic (TM) mode in integrated silicon photonic waveguides are designed and characterized under the boundary conditions of a photonic BiCMOS foundry. Two types of waveguide geometries are considered – a nanowire and a rib waveguide. Wafer-scale experimental results for nanowire TM grating couplers are in excellent agreement
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Integrated Er/Si Schottky Photodetectors on the end facet of optical waveguides J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-03-10 T. Crisci, L. Moretti, M. Gioffrè, M. Iodice, G. Coppola, M. Casalino
In the last two decades there has been growing interest in silicon photonics and in the possibility to integrate new materials to overcome the silicon intrinsic limitations. Erbium has represented a viable solution for the realization of light sources at telecommunications wavelengths opening the path to the investigation of various photonic devices based on rare earth. In this work we investigate
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The performance of consumer-grade near infrared spectrometer in traditional Chinese medicine J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-02-10 Zhaozhou Lin, Zhihong Zhuang, Chongnian Luo, Jiayu Zhang, Hao Gu
Technical advances in instrument manufacturing have promoted the miniaturization and cost reduction of portable NIR spectrometers. The price of a device is now affordable to ordinary consumers, which might promotes the application of NIRS in real scenarios. Generally, the portable spectrometers have a lower spectral resolution and a narrower spectral region compared with the benchtop ones. Whether
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Low-noise transfer of the spectral purity of an optical comb line using a feedforward scheme J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-02-07 Pierre Brochard, Benjamin Rudin, Florian Emaury, Valentin J. Wittwer, Stéphane Schilt, Thomas Südmeyer
We present a detailed frequency noise analysis of a feedforward scheme used to faithfully transfer the spectral properties of an individual line of an optical frequency comb spectrum to a single-mode laser and in this way indirectly amplify it, which is applicable to any arbitrary comb mode spacing. In contrast to previously reported implementation of the feedforward method for a similar purpose, we
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Correction of wavefront rotation between interferometer and shack-hartmann sensor using bending modes J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-01-16 Yi Zhu, Tao Chen, Hongzhuang Li
In some active optics system, the influence function, which is the surface deformation ability of an actuator, is measured by directly detecting the mirror surface using an interferometer and the surface correction of the primary mirror is done using the Shack-Hartmann (S-H) sensor. However, if the wavefronts of the interferometer and the S-H sensor have an obvious rotation, a large error will be introduced
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Round robin comparison study on the form measurement of optical freeform surfaces J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2020-01-08 Ines Fortmeier, Reyko Schachtschneider, Vit Ledl, Ondrej Matousek, Jens Siepmann, Antonia Harsch, Rolf Beisswanger, Youichi Bitou, Yohan Kondo, Michael Schulz, Clemens Elster
A round robin comparison of freeform form measurements was carried out by the project partners and stakeholders of a European metrology research project. Altogether six measuring instruments were considered: five different (pointwise and areal) optical devices and one tactile device. Three optical freeform surfaces were used for the comparison measurements, where two specimens were measured by five
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Infrared stripe correction algorithm based on wavelet decomposition and total variation-guided filtering J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2019-12-31 Ende Wang, Ping Jiang, Xuepeng Li, Hui Cao
Stripe non-uniformity severely affects the quality of infrared images. It is challenging to remove stripe noise in low-texture images without blurring the details. We propose a single-frame image stripe correction algorithm that removes infrared noise while preserving image details. Firstly, wavelet transform is used for multi-scale analysis of the image. At the same time, Total variation model is
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Orthogonally coupled geometrical constraints in optics design J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2019-12-17 Jyrki Kimmel
Modern optical multi-camera systems require integrating many camera modules in a small volume. A new space-saving concept for such imaging systems is presented, based on intersecting optical paths that utilize one or more common elements for the respective optical paths. The principles for the optimization for such systems is examined, providing the theory for geometric optimization constraints. These
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Fully automating fine-optics manufacture - why so tough, and what are we doing? J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2019-11-04 David Douglas Walker, Thomas Leo McCluskey, Guoyu Yu, Sanja Petrovic, Hongyu Li
Precision and ultra-precision surfaces are crucial for many products – quality optics, joint & cranial implants, turbine blades, and industrial moulds & dies, to name a few. Automation in this context is distinct from standard procedures in industry, where the identical sequence of operations can be repeated over and over again. Ultraprecision tolerances may be tens to hundreds of times tighter, and
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Study of a periodic spectral fluctuation existing in a fibered optical feedback cavity-enhanced absorption spectroscopy (OF-CEAS) J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2019-10-29 Zhifu Luo, Zhongqi Tan, Xingwu Long
A special periodic spectral fluctuation is observed during the study of a fibered high sensitivity optical feedback cavity-enhanced absorption spectroscopy (OF-CEAS) for the measurement of trace gas. This spectral fluctuation is different from some phenomenon observed in former OF-CEAS which contain a resonant cavity with V-shaped configuration, such as the etalon effect and the spectral ripple effect
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Inducing tunable single-mode operation of Fabry-Perot semiconductor laser coupled with very-short cavity with selective optical feedback J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2019-10-16 Mohammed S. Al-Ghamdi, Ahmed Bakry, Moustafa Ahmed
We report on achieving tuned single mode operation of a multimode semiconductor laser by coupling it to a very-short external cavity with selective feedback. We show that the induced uniform feedback light from the very-short external cavity can induce single-mode oscillation over a broad range of optical feedback. Then by applying selective external to the optimum settings of the single-mode oscillation
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Qualitative analysis of Sudan IV in edible palm oil J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2019-09-11 Sampson Saj Andoh, Tarmo Nuutinen, Cheetham Mingle, Matthieu Roussey
Palm oil is one of the most useful vegetable available. Sudan IV dye is used as hue enhancer in palm oil despite the ban as food colorant due to its carcinogenicity and mutagenicity by the International Agency for Research on Cancer (IARC). Surface enhanced Raman spectroscopy (SERS) coupled with chemometric methods was applied to detect the presence of Sudan IV in some edible palm oil samples. We studied
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Improving the calibration of phase measuring deflectometry by a polynomial representation of the display shape J. Eur. Opt. Soc. Rapid Publ. (IF 1.5) Pub Date : 2019-09-04 Jonas Bartsch, Michael Kalms, Ralf B. Bergmann
Phase measuring deflectometry is a highly precise and full field metrology technique for specular surfaces based on the distortion of known reference patterns observed as a reflection at the surface under test. Typically, liquid crystal displays are employed to provide the required patterns. Due to a lack of research, these displays are used without sufficient calibration. In this work, we present