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Preparation and properties of fluorescent quantum dots microbeads encapsulated in-situ by polyisobornyl methacrylate for immunochromatography J. Nanophotonics (IF 1.415) Pub Date : 2021-02-01 Si-Yang Jin; Le-Ping Lin; Xiao-Hui Chen; Fan Liu; Xiao-Bo Zhu; Guo-Ping Yan
In recent years, antibody-labeled fluorescent probes have attracted wide attention in fluorescence immunochromatography. Quantum dots (QDs) are excellent fluorescent materials with some unique optical properties, including strong stability against photobleaching, broad excitation spectra, high emission intensity, good fluorescence efficiency, and narrow excitonic emission. The CdSe/ZnS QDs microbeads
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Design and analysis of a tunable refractive index sensor by using a Ta2O5-coated photonic crystal fiber J. Nanophotonics (IF 1.415) Pub Date : 2021-02-01 Sugandha Das; Vinod Kumar Singh
A plasmonic refractive index (RI) sensor based on photonic crystal fiber is proposed. A chemically stable thin film of gold (Au) is used as an active plasmonic layer and high RI material Ta2O5 is used as an overlayer over the gold thin film. The effect of Ta2O5 thin film on the sensor performance is analyzed in detail and a novel, as per the authors’ best knowledge, operating analyte RI range tunable
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Thermochromic visualization of the heated region around a microbubble during Marangoni flow generation J. Nanophotonics (IF 1.415) Pub Date : 2021-02-01 Kyoko Namura; Toshiki Sono; Samir Kumar; Kaoru Nakajima; Motofumi Suzuki
We experimentally investigated simultaneous microfluidic control and visualization of a heated region using gold nanoisland/VO2 thin films. By focusing a laser on the film, we photothermally generated an air microbubble in nondegassed water. After the bubble generation, another laser spot was irradiated 48 μm away from the bubble center. As a result, a sudden onset of the rotational Marangoni flow
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Design, fabrication, test, and analysis of an out-of-plane plasmonic optical metasurface J. Nanophotonics (IF 1.415) Pub Date : 2021-02-01 Carlos D. Diaz; David B. Burckel; Bryan Adomanis; Augustine M. Urbas; Michael A. Marciniak
Plasmonic metasurfaces with in-plane phase elements have a limit in transmission because they only affect the electric field of incident EM radiation. Recently, a set of out-of-plane plasmonic phase elements was designed using a genetic algorithm to work in the infrared as a Huygens metasurface with significantly improved transmission efficiency. A beam-steering metasurface (i.e., blazed transmissive
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Multi-Fano resonances in MIM waveguides coupled with split annular cavity connected with rectangular resonator and application for multichannel refractive index sensor J. Nanophotonics (IF 1.415) Pub Date : 2021-02-01 Shilin Yu; Yu Su; Zhuoyue Sun; Tonggang Zhao; Jianguo Yu
A plasmonic structure, constituted by metal insulator metal waveguides and split annular cavity connected with rectangular resonator (SACRR), is proposed and investigated. Numerical simulation by the finite element method (FEM) has been done to investigate the transmittance properties of the proposed structure and four Fano resonances arise in the results. To analyze and verify the simulation results
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High-phase-speed Dyakonov surface waves J. Nanophotonics (IF 1.415) Pub Date : 2021-01-01 Tom G. Mackay; Chenzhang Zhou; Akhlesh Lakhtakia
The canonical boundary-value problem for Dyakonov-surface-wave propagation in a fixed direction guided by the planar interface of a uniaxial dielectric material and an isotropic nondissipative dielectric material was solved. Both partnering materials were taken to be homogeneous and the constitutive parameters for both to lie within the ranges of available materials. Solutions were found for which
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Optimal design of compositionally graded Al xGa1−xN nanostructure for optical absorption of UV photocathode J. Nanophotonics (IF 1.415) Pub Date : 2021-01-01 Zhisheng Lv; Lei Liu; Xingyue Zhangyang; Feifei Lu; Jian Tian
We numerically analyzed the influence of geometric structures of gradient Al component AlxGa1 − xN nanowire on their light-trapping properties, ranging from nanopillars, inverted conical frustums, to inverted hexagonal frustums. COMSOL® Multiphysics package based on the finite element method is used to systematically study the effects of geometric parameters such as base radii (R), pillar height (H)
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2020 List of Reviewers J. Nanophotonics (IF 1.415) Pub Date : 2021-01-01
This is a list of reviewers who served the Journal of Nanophotonics in 2020.
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Effect of the anisotropic parabolic potential on the polaron’s properties in asymmetric Gaussian quantum wells J. Nanophotonics (IF 1.415) Pub Date : 2021-01-01 Yan-Bo Geng; Zhao-Hua Ding; Ying Zhao; Yong Sun; Jing-Lin Xiao
In the current study, the linear combination operator (LCO) and Lee–Low–Pines unitary transformation (LLPUT) are adopted to verify the effect of the anisotropic parabolic potential (APP) on the polaron’s properties in the asymmetric Gaussian quantum well (AGQW). Relations of the vibrational frequency (VF) and the ground state energy (GSE) of weak coupling polaron in the AGQW for GaAs crystal varying
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AlN film-based Fabry–Perot cavity resonance enhanced absorption J. Nanophotonics (IF 1.415) Pub Date : 2021-01-01 Pengdi Wang; Xianghua Zeng; Jue Wang
The enhanced Fabry–Perot (F–P) resonance caused by adding a layer of AlN film to different metal substrates (AlN/metals) was analyzed by controlling the thickness of AlN film. The obtained results using the finite-difference time-domain (FDTD) method show that the absorption capacity of visible light was changed by the film interference effect. Then, the light absorption of Au/AlN/Fe (AAF) trilayer
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High coupling efficiency, passive alignment setup for visible-range fiber-to-waveguide edge coupling J. Nanophotonics (IF 1.415) Pub Date : 2020-12-01 Nathan C. Lin; Sakib Hassan; Xuan Zhao; Ashok Veeraraghavan; Jacob T. Robinson
We present a method to passively edge couple multiple optical fibers with silicon nitride waveguides in the visible wavelengths. We efficiently convert the fiber mode to the waveguide mode using an inverse taper mode size converter and support passive alignment using a U-groove that centers the optical fiber to the inverse taper. In our prototypes, we measure a coupling efficiency of −4.2 dB per facet
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Cost-effective synthesis and studies of novel hybrid ternary Cd1−xAg xS nanoparticles J. Nanophotonics (IF 1.415) Pub Date : 2020-12-01 Ponraj Joice Sophia; Sundaram Aravindkumar; Dhanabalan Sathish Chander; Karuppiah Deva Arun Kumar; Manavalan Rajesh Kumar
Cd1 − xAgxS nanoparticles were synthesized by a simple cost-effective chemical method in air atmosphere. We have achieved novel hybrid ternary nanoparticles of high quality. The prepared samples were characterized by x-ray diffraction, Fourier transform-Raman, field emission scanning electron microscopy, transmission electron microscopy, and UV–visible absorption spectroscopy. The results revealed
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Impurity states in a GaN/Al xGa1−xN spherical quantum dot under an applied electric field J. Nanophotonics (IF 1.415) Pub Date : 2020-12-01 Min Hu; Hailong Wang; Qian Gong
In the framework of effective mass envelope function approximation, the impurity states in GaN / AlxGa1 − xN spherical quantum dot (QD) are calculated by plane-wave expansion method. The binding energies of the impurity in 1s and 2p± states and the transition energy between 1s state and 2p± state are calculated and analyzed in detail. Several critical influencing factors of impurity states, including
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Highly sensitive antimonene-coated black phosphorous-based surface plasmon-resonance biosensor for DNA hybridization: design and numerical analysis J. Nanophotonics (IF 1.415) Pub Date : 2020-12-01 Maneesh Kumar Singh; Sarika Pal; Alka Verma; Yogendra Kumar Prajapati; Jai Prakash Saini
The design of an ultrasensitive surface plasmon resonance (SPR) sensor for the detection of deoxyribose nucleic acid (DNA) hybridization is highly desirable for biomedical applications. We have proposed an SPR sensor architecture (Prism-SF10/Al/Si/BP/Antimonene/phosphate buffer saline solution) and performed its numerical analysis for DNA hybridization using angular interrogation at 633 nm. Antimonene
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Ultra-broadband, wide-angle, and polarization-insensitive metamaterial perfect absorber for solar energy harvesting J. Nanophotonics (IF 1.415) Pub Date : 2020-12-01 Saad Zahraw Sekhi; Mehrdad Shokooh-Saremi; Mir Mojtaba Mirsalehi
An ultra-broadband perfect absorber for visible to near-infrared light utilizing a metamaterial nanostructure is theoretically proposed and numerically analyzed. The absorber consists of a square and plus shape layer of Ti-Al2O3 (top layer) and a thin layer of Cr located on a SiO2 layer over a TiN substrate. By ameliorating the dimensions of the design, an average absorption of 95.4% is attained for
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All fiber, highly sensitive sensor based on gold nanoparticle-coated macrobent single mode fiber for human temperature monitoring J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Dunia I. Al-Janabi; Ansam M. Salman; Abdulhadi Al-Janabi
A compact all-fiber temperature sensor based on a gold nanoparticle (GNP)-coated macrobent standard single-mode fiber (SMF) has been proposed and experimentally demonstrated. It can be easily constructed by just bending an SMF into a suitable bending radius to constitute a Mach–Zehnder modal interferometer. The sensing area of the bent SMF was coated with GNP utilizing the magnetron sputtering technique
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Increase in CO2 reduction rate via optical near-field effect J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Takashi Yatsui; Yuki Nakamura; Yosuke Suzuki; Tatsuki Morimoto; Yuma Kato; Muneaki Yamamoto; Tomoko Yoshida; Wataru Kurashige; Nobuyuki Shimizu; Yuichi Negishi; Kenji Iida; Katsuyuki Nobusada
To reduce the effects of global warming, visible and near-infrared light must be used more efficiently. Deep ultraviolet light (8 eV) is required for the direct dissociation of CO2 by light; however, the introduction of a metal complex has made it possible to realize CO2 reduction with visible light. We demonstrate that the optical near field (ONF) can increase the CO2 reduction rate. For this, we
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Origin and mechanism of the wavelength-dependent timing jitter in superconducting nanowire J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Jianghua Guo; Youcheng Tian; Lingxin Long; Hengbin Zhang; Junku Liu; Lin Xiao; Jun Xie
A 2D hot spot diffusion model for describing the superconducting nanowire response to a single photon is presented. Compared to the 1D hot belt model, the 2D hot spot model can capture the initial stage of the hot spot evolution after photon absorption, which is beneficial for achieving a more comprehensive understanding of the origins and underlying physics of the timing jitter in superconducting
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Synthesis and optical properties of copper oxide nanoparticles: effect of solvents J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Ningappa C. Horti; Mallappa D. Kamatagi; Ninganagouda R. Patil; Madivalagouda S. Sannaikar; Sanjeev R. Inamdar
Nanocrystalline copper oxide (CuO) powder was synthesized through solid-state co-precipitation technique using copper sulfate pentahydrate and sodium hydroxide pellets as a source materials. Crystalline nature and surface morphology of the sample are studied through x-ray diffraction, field emission scanning electron microscopy, energy dispersive x-ray, and Fourier transform infrared spectroscopy.
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Preparation of silver nanoparticles with different sizes and their optical-limiting property J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Hongyan Zhang; Yaxia Li; Dongxiang Li; Chunfang Li
Nanoscale noble metal particles have great potential as optical-limiting materials, whereas the size effect of silver nanoparticles on the optical limiting has been seldom reported before now. Silver nanoparticles with different sizes are synthesized by a seed growth method, and their optical-limiting properties to nanosecond laser at 532 nm are investigated. The results showed that, under the involved
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Transmission matrix method modeling of experimental results of electromagnetic shielding effectiveness of DNA-conductive nanoparticle composites J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 James G. Grote; Charles E. Rogers; Michael M. Salour
A transmission matrix method (TMM) commonly used for modeling the electromagnetic properties of multilayered biopolymer/conductive nanoparticle composites is presented, which predicts the behavior of the experimental results of the electromagnetic shielding effectiveness of a deoxyribonucleic acid-silver nanoparticle composite but falls short for accurately predicting the absolute shielding effectiveness
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High harmonics generation in bilayer graphene at high Fermi energies induced by coherent THz-radiation J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Armenuhi G. Ghazaryan; Hrant H. Matevosyan; Khachik V. Sedrakian
The higher-order harmonic generation process in the nonperturbative regime at the interaction of coherent electromagnetic radiation with the AB-stacked bilayer graphene at high Fermi energies is considered. The applied coherent low-frequency radiation field in the high Fermi energy zone of electrons excludes the interband transitions enhancing high harmonic rates. The developed microscopic nonlinear
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Tuning silica nanophotonics based on fluorescence resonance energy transfer for targeted non-classical light delivery applications J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Carina Salinas; Martin Amé; A. Guillermo Bracamonte
Tunable fluorescent silica nanoparticles (SiO2 NPs) with variable sizes based on fluorescence resonance energy transfer were synthesized. The SiO2 NPs were obtained by the Störber method by varying tetraethyl orthosilicate (TEOS) concentrations and with the incorporation of different concentrations of fluorescein (Fl) and rhodamine B (RhB) conjugated with 3-(aminopropyl)triethoxysilane. We thus recorded
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Effect of electrolyte pH value and current density on the electrodeposition of silver nanoparticles into porous silicon J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Rehab Ramadan; Raúl J. Martín-Palma
Nanostructured porous silicon (PS) can be used as a template for the growth of noble metal nanoparticles for the subsequent development of metal/semiconductor hybrid structures with application in several fields. The current work reports on the electrodeposition of silver nanoparticles (AgNPs) into columnar PS layers. In particular, the size, morphology, and surface density of the AgNPs grown into
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Design of silicon-based integrated gradient index lens J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Lei Zhang; Yuanhe Sun; Huijuan Xia; Lin Wang; Shuqi Cao; Shumin Yang; Yanqing Wu; Renzhong Tai
Metasurface silicon-based optical devices are highly integrated and high-performance, meeting the requirements of photonics integrated circuits. We present a design method for metasurface silicon-based gradient index (GRIN) optical lens. With easy calculation, this method supports large-area GRIN elements design. The Luneburg lens and integrated coupler are shown as examples. Such devices show good
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Gap-enhanced toroidal dipole and magnetic Fano resonances with polarization independence in all-dielectric metamaterials for sensing J. Nanophotonics (IF 1.415) Pub Date : 2020-11-01 Wudeng Wang; Jianguang Qi; Baoying Li
We have designed and numerically analyzed gap-enhanced toroidal dipole (TD) and magnetic Fano resonances with high Q-factors and large modulation depths simultaneously in an all-dielectric metamaterial for sensing. By introducing a gap in the cylinder, we achieved a significant enhancement in Q-factor and electromagnetic field compared to the cylinder with no gap in near-IR regime. In addition, TD
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Photoluminescence property of laser-ablated zinc oxide-carbon quantum dots nanocomposites for detection of Hg and Pb ions J. Nanophotonics (IF 1.415) Pub Date : 2020-10-01 Amir Reza Sadrolhosseini; Mohr. Ikmal Hafizi Bin Azaman; Amir Masoud Arabi; Suhaidi Shafie; Nur Hazahsha Shamsudin; Mohd. Adzir Mahdi; Suraya Abdul Rashid
Zinc oxide nanoparticles (ZnO-NPs) were fabricated using carbon quantum dots (CQD) solution using a laser ablation technique to investigate the photoluminescence properties and applications for the interaction of mercury and lead ions. The ablation times were 5, 7, 10, and 13 min. The prepared samples were characterized using UV–visible spectroscopy, Fourier transform infrared spectroscopy, and high-resolution
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Polydimethylsiloxane/multi-walled carbon nanotube nanocomposite film prepared by ultrasonic-assisted forced impregnation with a superior photoacoustic conversion efficiency of 9.98 × 10−4 J. Nanophotonics (IF 1.415) Pub Date : 2020-10-01 Haifei Wu; Hui Xia; Xiaowen Zhang; Hao Zhang; Haichao Liu; Jingyao Sun
Polydimethylsiloxane/multi-walled carbon nanotube (PDMS/MWCNT) composite had high photoacoustic transduction efficiency owing to its high light absorption coefficient and low interfacial thermal resistance. The high expansion coefficient and light absorption ability of PDMS/MWCNT nanocomposite films have significant positive effects when it is used as a laser ultrasonic transducer. We introduce an
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Schottky barrier photodetector utilizing tungsten grating nanostructure J. Nanophotonics (IF 1.415) Pub Date : 2020-10-01 Ankit Kumar Pandey; Anuj Kumar Sharma
Schottky barrier photodetector (PD) (tungsten/nickel/aluminum nitride) based on stacked tungsten gratings is reported in our work. The absorbance of the grating-based structure is obtained using rigorous coupled-wave analysis method. In addition, a responsivity value of 6.164 mA / W is calculated at λ = 559.38 nm based on Fowler’s model. More than three times enhancement in responsivity is achieved
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Detection technique for vitamin D3 using Er-doped TiO2 nanowire-based UV photodetector J. Nanophotonics (IF 1.415) Pub Date : 2020-10-01 Shyam M. M. Dhar Dwivedi; Anupam Ghosh; Sagarika Deepthy; Moumita Maji; Rini Lahiri; Sanjib Mondal; Chiranjib Ghosh; Avijit Dalal; Aniruddha Mondal; Monidipa Ghosh
Vitamin D3 acts as a crucial biomarker for various diseases. Current methods for vitamin D3 detection are time-consuming, expensive, and require trained personnel. We report a simple and cheap photodetector (PD)-based vitamin D3 detection technique for the first time using Ag nanoparticles-covered Er-doped TiO2 nanowires. The operational stability of the device was tested under the dark as well as
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Multilayer for antireflection coating applications using metal nanoparticles to provide ultraviolet blocking J. Nanophotonics (IF 1.415) Pub Date : 2020-09-01 Sunil Deka; Waleed Mohammed
We propose the use of metal nanoparticles (NPs) [(silver (Ag)] embedded heterogeneous composite material made of titanium dioxide (TiO2) for antireflection coating (ARC) while partially blocking the transmission of near-ultraviolet (UV) radiation across the thin-film arrangement. The proposed structure consists of two layers of porous TiO2 thin film of specific thickness and volume fraction to attain
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Sol–gel synthesized ZnO/Mn–TiO2 core–shell nanocomposite and its elevated activity for methyl orange degradation J. Nanophotonics (IF 1.415) Pub Date : 2020-09-01 Mohammad R. D. Khaki; Mohammad S. Shafeeyan
Photocatalysis is a new advanced oxidation process based on the irradiation of semiconductors such as TiO2 and ZnO for photodegradation of contaminants. In this process, the semiconductor absorbs the photon energy of ultraviolet radiation, generating highly reactive species for the degradation of organic compounds. It has been reported that doping of transition metals (e.g., Cu, Ni, Co, and Mn) into
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Recent advances and progresses in photonic devices for passive radiative cooling application: a review J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 Amit Kumar Goyal; Ajay Kumar
This review covers the recent progress made in the nanophotonic devices-based daytime passive radiative coolers. The radiative cooling capabilities along with the structural description of various natural species are discussed. The design principle along with key characteristics of the omnidirectional solar reflectors as well as thermal adiators is discussed in detail. Several analogues planner one-dimensional
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Multidonor surface energy transfer from Alexa Fluor dyes to gold nanoparticles: a quest for innovative sensor applications J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 Mallikarjun K. Patil; Mare G. Kotresh; Laxmi S. Inamdar; Sanjeev R. Inamdar
We report energy transfer (ET) from two dyes: Alexa Fluor 514 (AF514) and Alexa Fluor 532 (AF532) to gold nanoparticles (AuNPs) of three different sizes (10, 30, and 53 nm) employing steady-state and time-resolved fluorescence measurements. The results show that the fluorescence intensity and fluorescence lifetimes of donor (D) molecules AF514 and AF532 decrease with increase in the concentration of
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Hybridization of plasmon modes in multishell bimetallic nanoparticles: a numerical study J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 Fatema Alali; Innem V. A. K. Reddy; Edward P. Furlani; Josep M. Jornet
We study the near-infrared properties of spherical multishell nanoparticles comprising a loss-less dielectric core enclosed by a concentric layering of metallic–dielectric–metallic nanoshells. The coupling between the metallic shells induces plasmon resonance redshifts and peak splitting in the absorption spectra of the layered particle relative those of the metallic constituents. We use full-wave
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Experimental investigation of temperature and angular dependence of plasmonic structures on resonance and absorption properties J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 Songya Cui; Jiaguo Tian; Li Xue; Pengchao Qin; Peipei Wu; Yongqi Fu
A metallic microcones array-based plasmonic strcture is presented as an example for the purpose of experimentally exploring the dependence of ambient temperature and incident angle on resonance and absorption properties. The microcones array is fabricated using the technique of heavy ion tracking. The technique has advantages of large-area patterning, high-aspect ratio of unit dimension, controllable
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Impurity states in InGaAsP/InP core–shell quantum dot under external electric field J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 Min Hu; Hailong Wang; Qian Gong
In the framework of effective mass envelope function approximation, the impurity states are calculated in InGaAsP/InP core–shell quantum dots by plane wave expansion method, and the effect of electric field is considered. The impurity binding energies in 1s and 2p ± states, and the impurity transition energy between 1s state and 2p ± state are calculated and analyzed in detail with the change of shell
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Double toroidal switches based on the different multipole responses in the all-dielectric metasurface J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 Wudeng Wang; Jianguang Qi; Baoying Li
We design and numerically investigate an all-dielectric metasurface, constructed of four open resonant rings described by the group Cs and located with a cross-shaped resonator between them, that realizes double toroidal switching, in which switching from a toroidal dipole to a quadrupole response occurs in two separate frequency regimes. It is shown that the toroidal dipole can be dynamically switched
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Efficient majority logic subtractor design using multilayer crossover in quantum-dot cellular automata J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 Jeyalakshmi Maharaj; Santhi Muthurathinam
Quantum-dot cellular automata (QCA) is a potential upcoming nanotechnology for designing digital circuits with high performance. A subtractor is an important arithmetic circuit used in many digital circuits. An efficient multilayer full subtractor design is proposed using majority logic in QCA. The proposed design has only 53 cells and occupies a small area of about 0.03 μm2. Using the proposed subtractor
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Silver nanoparticles synthesis using biomolecules of habanero pepper (Capsicum chinense Jacq.) as a reducing agent J. Nanophotonics (IF 1.415) Pub Date : 2020-08-01 David O. Oseguera-Galindo; Eden Oceguera-Contreras; Dario Pozas-Zepeda
A simple, low-cost, and ecofriendly method of obtaining silver nanoparticles was obtained from AgNO3 in dilution for the first time with a habanero pepper infusion. Two sets of experiments were carried out. The samples obtained in the first experiment were analyzed by SEM and TEM. Results showed that the samples prepared using 0.001 M and 0.005 M of AgNO3 and particles with an average size of 19.3
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Compact and broadband silicon-based transverse electric-pass power splitter using triple-guide directional couplers with hybrid plasmonic waveguides and subwavelength gratings J. Nanophotonics (IF 1.415) Pub Date : 2020-09-01 Yufei Chen; Jinbiao Xiao
A compact and broadband transverse electric (TE)-pass power splitter using triple-guide directional couplers (TGDCs) is proposed and analyzed in detail, where the TGDCs are formed by two outside subwavelength grating (SWG) waveguides and a central strip waveguide with segmented hybrid plasmonic waveguides (HPWs) on its top. For input transverse magnetic (TM) mode, it is transmitted along the central
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Design and analysis of a highly sensitive octagonal hollow core photonic crystal fiber for chemical sensing J. Nanophotonics (IF 1.415) Pub Date : 2020-09-01 Mohammad Rakibul Islam; Mamoudou Mamadou; Md. Sohidul Islam
Due to the dire need to monitor, sense, and control useful and harmful chemicals for industrial, environmental, and biomedical purposes, chemical sensing has become an eminent topic among researchers. Hence, we focus mainly on a modified kagome design with a relatively high sensitivity of 99.8%, effective material loss of 0.000263 cm − 1 for constant absorption loss, and 0.0004204 cm − 1 for variable
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Prism-based tunable InGaN/GaN self-injection locked blue laser diode system: study of temperature, injection ratio, and stability J. Nanophotonics (IF 1.415) Pub Date : 2020-07-01 Mohammed Z. M. Khan; Sani Mukhtar; Jorge A. Holguín-Lerma; Omar Alkhazragi; Islam Ashry; Tien K. Ng; Boon S. Ooi
A quasicontinuously wavelength tuned self-injection locked blue laser diode system employing a prism is presented. A rigorous analysis of the injection ratio (IR) in the form of three systems, namely high (HRS, ∼ − 0.7 dB IR), medium (MRS, ∼ − 1.5 dB IR), and low (LRS, ∼ − 3.0 dB IR) reflection systems, showed a direct relationship with the wavelength tunability whereas the usable system power exhibited
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Design of reversible universal and multifunctional gate-based 1-bit full adder and full subtractor in quantum-dot cellular automata nanocomputing J. Nanophotonics (IF 1.415) Pub Date : 2020-07-01 Suhaib Ahmed; Majid I. Baba; Soha M. Bhat; Insha Manzoor; Naira Nafees; Seok-Bum Ko
The issues faced by CMOS technology in the nanoregime have led to research for other possible technologies that can operate with the same functionalities but with higher speed and lower power dissipation. One such technology is quantum-dot cellular automata (QCA). A 3 × 3 reversible universal and multifunctional gate is presented that is reversible, universal, and multifunctional in nature. The gate
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Resonant enhancement of evanescent waves with graphene and double-negative materials in the visible regime J. Nanophotonics (IF 1.415) Pub Date : 2020-07-01 Darya Azami; Sarkew S. Abdulkareem; Abdollah Hassanzadeh
We theoretically investigate the enhancement of the evanescent waves near the surface of a prism coated with several layers of metals, graphene, and double negative materials. The thicknesses of the metals and double negative material films along with the number of graphene layers are optimized to achieve the highest enhancement factor. We show that the intensity of the evanescent wave in the proposed
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Detection of tumor necrosis factor-alpha cytokine from the blood serum of a rat infected with Pb18 by a gold nanohole array-based plasmonic biosensor J. Nanophotonics (IF 1.415) Pub Date : 2020-07-01 Sheila M. Predabon; Paulo H. M. Buzzetti; Jeane E. L. Visentainer; Jesui V. Visentainer; Eduardo Radovanovic; Johny P. Monteiro; Emerson M. Girotto
Tumor necrosis factor-alpha (TNF-α) is a signaling protein of inflammatory processes. TNF-α overexpression triggers inflammatory processes related to various diseases such as rheumatoid arthritis, Crohn’s disease, Chagas, and others. For this reason, the TNF-α has been used as an important biological biomarker for prognosis, understanding, and disease treatment. Surface plasmon resonance (SPR)-based
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Polarization-independent absorption enhancement in graphene for light incidence in conical mounting J. Nanophotonics (IF 1.415) Pub Date : 2020-07-01 Jun Wu
A terahertz graphene tunable absorber consisting of monolayer graphene on a dielectric grating and a substrate separated by a waveguide layer is designed and investigated. The absorber exhibits polarization-independent absorption enhancement at resonance for fully conical light incidence, which is attributed to the simultaneous excitation of two identical guided modes in the waveguide layer. Moreover
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