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Focusing property and optical field modulation of three-core fiber optical tweezers J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-12-03 Yingxin Zhu, Hong Li, Yuan Wang, Xiwen Cui, Lianqing Zhu
This work develops a three-core fiber optical tweezers probe with a double cone angle and a tip microlens based on the Lorentz-Mie scattering theory. The primary parameters of the structural probe, such as the cone angle and the thickness of the microlens, are investigated and clarified by theoretical research, model construction, and simulation analysis. The best capture ability is at 44° of second-order
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CO2-broadened lineshapes in the oxygen A-band J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-29 T.M. Petrova, A.M. Solodov, A.A. Solodov, V.M. Deichuli, A.A. Fedorova
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Statistical Narrow Band model for vibrational nonequilibrium CO2 radiation J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-12-02 Guillaume Janodet, Philippe Rivière, Jean-Michel Lamet, Valérie Rialland, Lionel Tessé, Anouar Soufiani
This paper presents the development of a Statistical Narrow Band (SNB) model for CO2 in a nonequilibrium vibrational state. The population densities of the energy levels are modeled by a three-temperature approach (T,T12,T3) associated resp. to translation-rotation modes, symmetric-stretching and bending modes, and antisymmetric stretching mode, to compute nonequilibrium line by line (LBL) spectra
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The polychromatic T-matrix J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-12-01 Maxim Vavilin, Ivan Fernandez-Corbaton
The T-matrix is a powerful tool that provides the complete description of the linear interaction between the electromagnetic field and a given object. In here, we generalize the usual monochromatic formalism to the case of polychromatic field-matter interaction. The group of transformations of special relativity provides the guidance for building the new formalism, which is inherently polychromatic
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Unifying radiative transfer models in computer graphics and remote sensing, Part I: A survey J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-29 Katherine Salesin, Kirk D. Knobelspiesse, Jacek Chowdhary, Peng-Wang Zhai, Wojciech Jarosz
The constellation of Earth-observing satellites continuously collects measurements of scattered radiance, which must be transformed into geophysical parameters in order to answer fundamental scientific questions about the Earth. Retrieval of these parameters requires highly flexible, accurate, and fast forward and inverse radiative transfer models. Existing forward models used by the remote sensing
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Assessing Biases in Atmospheric Parameters for Radiative Effects Estimation in Tropical Regions J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-12-01 V.N. Santhosh, B.L. Madhavan, M. Venkat Ratnam, Dinesh N. Naik, Pasquale Sellitto
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Unifying radiative transfer models in computer graphics and remote sensing. Part II: A differentiable, polarimetric forward model and validation J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-12-01 Katherine Salesin, Kirk D. Knobelspiesse, Jacek Chowdhary, Peng-Wang Zhai, Wojciech Jarosz
The constellation of Earth-observing satellites continuously collects measurements of scattered radiance, which must be transformed into geophysical parameters in order to answer fundamental scientific questions about the Earth. Retrieval of these parameters requires highly flexible, accurate, and fast forward and inverse radiative transfer models. Existing forward models used by the remote sensing
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Photon tunneling mechanism of internal plasmon polaritons between two thick slabs under near-field radiation excitation J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-12-01 Deyu Xu, Junming Zhao, Linhua Liu
Internal plasmon polariton (IPP), featuring localization of electromagnetic fields in the interior of material, is recently revealed to be supported in slabs with gradient carrier density distribution under near-field thermal excitation. However, the dispersion relation and photon tunneling mechanism of IPP have not been fully elucidated. To address the issues, in this paper, we investigate the photon
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Convergence of the DDA for ensembles of objects of irregular shape J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-30 Evgenij Zubko, Anton Kochergin, Gorden Videen
The discrete dipole approximation (DDA) is commonly used to compute light-scattering properties of irregularly shaped particles. The DDA maps the particle into an array of cubic cells with side d < λ. For a randomly oriented irregularly shaped particle, DDA has been shown accurate when kd|m| ≤ 1, where k is the wavenumber and m is the particle refractive index. We demonstrate that the DDA yields robust
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Ab initio potential energy surfaces and spectroscopic and radiative properties of the low-lying states of the radium monohydroxide RaOH radical J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-30 Yuliya Osika, Sergey Sharashkin, George Pitsevich, Maksim Shundalau
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Multimode beam propagation through atmospheric turbulence J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-12-01 Muhsin Caner Gökçe, Yahya Baykal, Yalçın Ata, Hamza Gerçekcioğlu
The investigation focuses on studying the propagation characteristics of multimode lasers in the turbulent amosphere. By employing the Huygens-Fresnel integral, we develop analytical formulations for various propagation parameters. These include the average intensity distribution, kurtosis parameter, beam spread, and the average transmittance of multimode beams in turbulent atmosphere. Our findings
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Wavelengths and E1, E2, M1, and M2 line strengths in Nb XXX J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-29 Fatma El-Sayed, S.M. Attia
The calculations are performed to calculate the excitation energies, wavelengths, line strengths, transition probabilities, and weighted oscillator strengths for the electric-dipole (E1), electric-quadrupole (E2), magnetic-dipole (M1), and magnetic-quadrupole (M2) transitions between the lowest 301 fine-structure levels of the 3snl (n = 3 − 6, l = 0 − 5), 3pnl (n = 3 − 5, l = 0 − 4), and 3dnl (n = 3 − 5
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A detailed of analysis of joint soot volume fraction/temperature statistics in non-premixed jet flame: Implication for soot emission turbulence/radiation interaction J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-27 Jean-Louis Consalvi, Fatiha Nmira
The main objective of this study is to provide insights on the modelling of soot emission Turbulence Radiation Interaction (TRI) through a detailed analysis of the joint SVF/temperature statistics in turbulent non-premixed flames. The analysis relies on RANS/Transported Probability Density Function (TPDF) simulation of the Sandia ethylene jet turbulent non-premixed flame. RANS/TPDF predictions reproduce
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Scattering of Gaussian beam by a large nonspherical particle based on vectorial complex ray model J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-23 Qingwei Duan, Jiajie Wang, Qiwei Li, Xiang’e Han, Kuan Fang Ren
To describe the interaction of a shaped beam with a particle, the well-known generalized Lorenz–Mie theory (GLMT) has been developed in the past three decades. However, because of the dependence on the method of separation of variables, it is limited to particles of simple shapes such as spheres. In recent years, the vectorial complex ray model (VCRM) has been developed for the light/electromagnetic
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Lattice Boltzmann method for coupled radiation-conduction heat transfer in participating medium with graded-index J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-23 Yijie Wei, Si Wu, Xiaochuan Liu, Keyong Zhu, Yong Huang
Graded-index materials are effective to control thermo-optical systems, due to its special physical characteristics. And quantitatively calculation for energy transfer process is valuable for the research of graded-index materials. Thus, reliable numerical method is required. Lattice Boltzmann method (LBM) is a mesoscopic numerical method with unique advantages on coupling muti-physical field. Here
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On Evanescent Waves and Blowing-ups of the Finite Series Technique in Spherical Wave Expansion of Shaped Beams J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-22 Jianqi Shen, Siqi Tang, Leonardo A. Ambrosio, Gérard Gouesbet
In generalized Lorenz-Mie theory, the beam shape coefficients of Gauss-like beams obtained with finite series method blow up when the wave order is high. The blowing-ups caused by the loss of significant digits may be suppressed by increasing numerical precisions. Once the elimination of such blowing-ups is carried out, blowing-up phenomena still occur whose origin is still not clear to us. The work
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Broadband ultrafast-laser-absorption measurements of NO2 absorption cross-sections from 430 to 500 nm at high temperatures behind shock waves J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-17 Ryan J. Tancin, Vishnu Radhakrishna, Christopher S. Goldenstein
This work presents broadband spectrally resolved measurements of the absorption cross-section of NO2 from approximately 430 to 500 or 580 nm, depending on temperature, with a spectral resolution of approximately 0.06 nm. An ultrafast-laser-absorption-spectroscopy (ULAS) diagnostic was developed and used to provide broadband (up to approximately 900 cm−1 per laser shot) cross-section measurements with
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Modeling and analysis of spectral polarization BRDF based on Microfacet theory J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-17 Baorui Huang, Bo Peng, Qifeng Ren, Sheng Liao
The polarization bidirectional reflectance distribution function (p-BRDF) model derived from the microfacet theory is utilized for ascertaining wavelength dependent terms in the model. The spectral p-BRDF model of a given object surface is established according to the spectral models of the complex refractive index and the width parameter. Each parameter in the spectral p-BRDF model has a clear physical
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Collisional broadening of molecular rovibronic lines J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-17 Jeanna Buldyreva, Ryan P. Brady, Sergei N. Yurchenko, Jonathan Tennyson
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Systematic investigation of transitions to J-mixed Pr I – levels J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-11 Laurentius Windholz, Imran Siddiqui, Shamim Khan, Syed Tanweer Iqbal
In JQSRT 305 (2023) 108596 we have recently published the discovery of two energy levels of the Pr atom that exhibit strong J-mixing. Additionally, we present here the manifold of observed hyperfine (hf) structure patterns. Their appearance of these patterns is not solely determined by the J-values of the combining upper levels; the composition of their wave functions also plays a cruical role. In
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Adaptive learning and expansion of spectral parameters in HITRAN database: A novel SCLB model for predicting high-temperature gas spectra J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-11 Yuefan Du, Xiaoping Li, Lei Shi, Fangyan Li, Shurong Yuan
Recent advancements in aerospace optics have highlighted the significance of high-temperature gas optical radiation properties in the fields of optical research and optical detection. The High-Resolution Transmission Molecular Absorption Database (HITRAN) provides a comprehensive range of high-temperature gas spectral radiation parameters, which are essential for studying the optical radiation of these
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Scattering and enhancement of electromagnetic waves energy by coaxial plasma cylinders J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-10 Mir Mohammad Damadi, Mohammad Kouhi, Samad Sobhanian, Ali Vahedi, Alireza Ahangharzadeh Maralani
The scattering of plane electromagnetic waves by three configurations of coaxial plasma cylinders is investigated in perpendicular incidence. The results show that the electromagnetic energy enhancement and redistribution of energy are significantly affected by plasma frequency, electron neutral collision frequency, incident wave frequency, and the configuration of coaxial plasma cylinders. With increasing
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Water vapor absorption spectroscopy and validation tests of databases in the far-infrared (50-720 cm−1). Part 2: H217O and HD17O J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-07 E.V. Karlovets, S.N. Mikhailenko, A.O. Koroleva, A. Campargue
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Electromagnetic characterization of a metasurface composed of thin circular dielectric disk under normal incidence J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-07 Zeeshan A. Awan
Electromagnetic characterization of a metasurface composed of circular dielectric disks under normal incidence is presented. A dielectric disk is assumed to be infinitesimally thin with moderate values of the relative permittivity so that it can be modeled as an electric dipole. Thus, for the considered infinitesimally thin metasurface, normal electric surface polarization current is negligible. An
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Vibrational and Dipolar Calculations of Mg-(Li, Na, K) Polar Molecules J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-09 Sahar Gaddour, Soulef Jellali, Héla Habli
In this present paper, high-level ab-initio calculations were well performed using multi-configuration self-consistent field, multi-reference configuration interaction and pseudo-potentials methods of diatomic polar molecules compound to magnesium and an alkali atom (Li, Na, K) essentially for the ground and different low-lying excited electronic states of both symmetries 2,4Σ+ and 2,4Π. In this context
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Self-consistent modeling and analysis of spatial homogeneity of pure Na and Na−Ar mixture resonance photoplasma in a gas cell for Voigt profile J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-08 Sergey A. Astashkevich, Anatoly A. Kudryavtsev
A self-consistent modeling of the resonance photoplasma in pure Na and Na−Ar mixtures with spatial homogeneity of photoexcitation of the resonance levels of Na in the volume of a cylindrical gas cell has been carried out. The Voigt line shape and the collision broadening of the D1 and D2 lines of Na were considered. The main photoplasma parameters were calculated for the Na pressure PNa=0.0045−0.165 torr
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Comparison between ACE and CALIPSO observations of Antarctic polar stratospheric clouds J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-07 Léo Lavy, Peter Bernath, Michael Lecours, Dylan English, Michael Fromm
The depletion of stratospheric ozone is catalyzed by polar stratospheric clouds (PSCs) that form in the cold polar winter. The space-based lidar onboard CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations) has been the reference instrument for measuring PSCs. Recently, the infrared transmission spectra recorded by the Fourier transform instrument on the ACE (Atmospheric Chemistry
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Electromagnetic and light scattering XIX J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-07 Alexey A. Shcherbakov, Lei Bi, Maxim A. Yurkin
Abstract not available
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An approach for a polychromatic generalized Lorenz–Mie theory J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-04 Leonardo A. Ambrosio, Jhonas O. de Sarro, Gérard Gouesbet
In this work a polychromatic version of the generalized Lorenz–Mie theory stricto sensu (GLMT) is derived. In this new formalism, arbitrary time-dependent fields are expanded into partial waves using Bromwich scalar potentials and, instead of the usual expansion coefficients – the beam shape coefficients (BSCs) – found in the monochromatic GLMT, now one finds field shape spectra (FSSs) which are intrinsically
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Gas-mixture IR absorption spectra denoising using deep learning J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-11-04 Yu.V. Kistenev, V.E. Skiba, V.V. Prischepa, A.V. Borisov, D.A. Vrazhnov
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The magnetic dipole transition in Rb-like ion and its core-valence correlation effect J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-29 Ben Niu, Yanting Li, Gang Xiong, Jihui Chen, Zhimin Hu, Yunqing Fu, Yaming Zou, Chongyang Chen, Ke Yao
This study presents both experimental and theoretical analysis of the 4d 2 D5/2 → 2 D3/2 magnetic dipole transition in Rb-like ions. Spectral lines of Xe17+, La20+ and Pr22+ ions were recorded using an electron beam ion trap. The theoretical framework employed the fully relativistic Multi-configuration Dirac–Hartree–Fock method, accounting for the Breit interaction, QED effects and comprehensive core-valence
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Rovibronic molecular line list for the N2(C3Πu−B3Πg) second positive system J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-31 E.R. Jans
A line list for the N2 second positive system, B3Πg - C3Πu, has been compiled using the PGOPHER spectral simulation software. The line list extends the number of vibrational states of the B3Πg up to v= 29 and a maximum rotational state of J= 150 for simulation temperatures up to 7000 K. New electronic–vibrational transition moments were calculated using refined potential energy curves and a transition
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A comparative study of efficient iterative solvers for the discrete dipole approximation J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-30 Patrick C. Chaumet
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Generalized Airy theory and its region of quantitative validity J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-30 James A. Lock, Gunther P. Können, Philip Laven
Airy theory has long proved to be a remarkably simple analytical model that describes the various features of the atmospheric rainbow. But the stringent assumptions upon which its derivation is based, prevent it from being quantitatively accurate in practical situations. We derive an analytical generalization of Airy theory for both the transverse electric and magnetic polarizations and for an arbitrary
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Synchrotron-based pure rotational spectroscopy of H13COOH J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-29 Jianbao Zhao, Brant E. Billinghurst, Paul L. Raston
The room-temperature far-infrared spectrum of 13C-labelled formic acid has been recorded at a resolution of 0.00096 cm−1. We assigned 1328 lines from 49 to 142 cm−1 to rotational transitions with quantum numbers that significantly extend the range beyond which was previously reported. We included these new lines in an analysis that involved fitting an extensive set of ground state molecular constants
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Accurate absolute absorption cross-sections of the ozone Wulf bands at 1 µm range: measurements with high-resolution cw-CRDS laser techniques J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-29 Semen Vasilchenko, Alexander Solodov, Oleg Egorov, Vladimir Tyuterev
Ozone plays a major role in atmospheric chemistry and radiative processes with an impact on climate and ecosystems being also considered as a possible biosignature species in exoplanetary observations. This makes important an extension of accurate laboratory data to various spectral ranges. The present work provides absolute absorption cross-sections of ozone accurate to about 3% in the near-IR range
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The new σ-IASI code for all sky radiative transfer calculations in the spectral range 10 to 2760 cm-1: σ-IASI/F2N J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-23 Guido Masiello, Carmine Serio, Tiziano Maestri, Michele Martinazzo, Fabrizio Masin, Giuliano Liuzzi, Sara Venafra
The paper describes a recently developed forward model (σ-IASI/F2N) to produce spectral radiances from the far to near-infrared spectrum (100 to 2760 cm-1). The model is a pseudo-monochromatic radiative transfer tool that exploits lookup tables to compute the optical depths of atmospheric gas and clouds. Multiple scattering effects are accurately included in both the Far IR and Thermal IR by using
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Polarized radiative transfer: Monte Carlo code Ventspils RTMC. Testing of it and RADMC3D J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-27 J. Freimanis, R. Peženkovs
We have created Monte Carlo code Ventspils RTMC for polarized radiative transfer modelling in an isotropic, optically inactive medium of arbitrary configuration and morphology, and made it public. Its main advantages are simplicity of structure and usage, which can be a benefit for simple physical problems, together with use of sound and fully defined basic equations describing the scattering process
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Sulfate aerosol properties derived from combining coincident ACE-FTS and SAGE III/ISS measurements J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-23 C.D. Boone, P.F. Bernath, A. Pastorek, M. Lecours
Combining infrared aerosol transmittance spectra from the Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) and visible/near infrared extinction information from coincident SAGE III/ISS measurements, the properties of stratospheric sulfate aerosols are derived under various conditions. Assuming a bimodal size log-normal distribution (rather than a monomodal one) is required
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Optimized VMD algorithm for signal noise reduction based on TDLAS J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-20 Gengyu Qi, Zhanmin Zhao, Ru Zhang, Junfen Wang, Mingliang Li, Xuemei Shi, Han Wang
Currently, traditional variational modal decomposition (VMD) algorithm requires manual selection of the number of decomposition layers K according to the decomposition results, which increases the complexity of the system. What's more, the noise reduction effect of traditional VMD algorithm needs to be further improved for low frequency signal. A kind of optimized VMD algorithm was proposed, which
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Phase shift cavity ring down and FT-NIR spectra of CH vibrational transitions and band strengths of ethyl acetate J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-21 Carlos E. Manzanares, Yasnahir Perez Delgado, Suresh Sunuwar
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Optical attenuation by sand/dust storms considering relative humidity J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-20 Shixiong Wu, Xuebang Gao, Xuqiang Dou, Li Xie
In this paper, an indoor experimental study on optical attenuation by sand/dust storms at different relative humidity (RH) is carried out. It is found that when the RH is higher than about 60 %, the hygroscopic growth of sand/dust particles has a significant effect on optical attenuation. Based on the double-parameter Kasten model, an optical attenuation model by sand/dust storms is proposed, which
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An application of the boundary element method (BEM) to the calculation of the single-scattering properties of very complex ice crystals in the microwave and sub-millimetre regions of the electromagnetic spectrum J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-17 Antigoni Kleanthous, Anthony J. Baran, Timo Betcke, David P. Hewett, Christopher D. Westbrook
To improve the prediction of weather and climate models there is a need for the accurate computation of the single-scattering properties of randomly oriented complex atmospheric ice crystals. Here, we apply BEM to calculate these properties in the microwave and sub-millimetre region of the electromagnetic spectrum for the purposes of all-sky data assimilation. The properties are calculated at the frequencies
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A machine learning based model for gray gas emissivity and absorptivity of H2O-CO2-CO-N2 mixtures J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-16 Wei Chen, Tao Ren, Changying Zhao
To quickly estimate the radiative transfer of gases, it is common to adapt parameters such as total (gray) emissivity and absorptivity for the calculations. However, existing state-of-the-art models for gray gas mixtures rely on two-dimensional look-up tables and multiple approximation steps, which can result in reduced accuracy and efficiency. This study addresses these limitations by employing a
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Evolution of temporal and frequency characteristics of spherical photon density waves in scattering media J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-13 Alexander G. Luchinin, Mikhail Yu. Kirillin, Lev S. Dolin
The paper reports on the numerical study of temporal characteristics, frequency and phase responses of the photon density waves generated by a point-sized source in scattering media with different scattering anisotropy and absorption index. The study is performed with time-resolved Monte-Carlo simulations for a wide range of medium optical properties covering values typical for aerosols and sea water
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The effect of size and shape-dependent optical properties on colored radiative cooling in metal island films J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-12 Refet A. Yalcin, Cagatay Haratoka, David Babonneau, Sophie Camelio, Karl Joulain, Jérémie Drévillon
We study visible and infrared optical absorption of metal island films that are commonly used for applications such as color filters and sensors. Calculations were performed using the T-matrix method and compared to experimental transmittance measurements at visible spectrum on a real sample. While the radiation transfer solution through these films often assumes (i) no plasmon coupling, (ii) spherical
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Professor Richard Mead Goody (1921-2023): A Life in Three Acts J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-06 Yuk L. Yung
Professor Goody's illustrious scientific career spanned several decades and is best categorized into three pivotal phases, each representing roughly a third of his life: “Pioneer of the Stratosphere”, “Center for Earth and Planetary Physics”, and “The Sun Never Sets.” In the subsequent epilogue, “Epilogue: Contemplations and Perspectives,” I recount many dialogues and communications I have had with
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Valence and Rydberg excitations of 3-fluorotoluene in the 4.4–10.8 eV photoabsorption energy region J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-09 E. Bandeira, S. Kumar, A.I. Lozano, M.H.F. Bettega, S.V. Hoffmann, N.C. Jones, A. Souza Barbosa, P. Limão-Vieira
The absolute photoabsorption cross sections for 3-fluorotoluene in the 4.4–10.8 eV energy-range were obtained for the first-time using a synchrotron radiation light source. New theoretical calculations, providing vertical excitation energies and oscillator strengths, were performed at the time-dependent density functional theory and the equation-of-motion coupled cluster method restricted to single
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Raman scattering in the Earth’s atmosphere, Part II: Radiative transfer modeling for remote sensing applications J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-04 Suniti Sanghavi, Christian Frankenberg
Raman scattering in the Earth’s atmosphere is caused predominantly by its most abundant molecular components, N2 and O2. After the computation of the optical properties that govern the spectral and angular redistribution of light due to various inelastic scattering events, viz. rotational Raman scattering (RRS), vibrational Raman scattering (VRS), and rovibrational Raman scattering (RVRS), covered
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Thermophotonic cells in self-sustaining parallel circuits J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-10-04 Zhimin Yang, Jaeman Song, Bong Jae Lee
Thermophotonic (TPX) cells, which integrate a light-emitting diode (LED) and a photovoltaic (PV) cell, offer potential advantages over thermophotovoltaic (TPV) cells for low-grade waste heat utilization. While TPX cells traditionally operate in an independent circuit, which requires an external battery storage unit, the self-sustaining circuit presents an appealing alternative that eliminates the need
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Spectral mosaics: Composite absorption cross sections of air-broadened tetrafluoromethane with comparable uncertainty in the measured intensity over orders of magnitude J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-29 A.V. Domanskaya, K. Berezkin, G. Li, H. Bohlius, M. Kim, J.J. Harrison, V. Ebert
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Transition probabilities of the AgS(A2Σ+ → X2Π) emission including spin–orbit coupling effects and evidence of a novel band system J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-28 Ramon S. da Silva, Maikel Y. Ballester
A systematic spectroscopic work using multireference configuration interaction (MRCI) and coupled cluster (CC) calculations was performed in conjunction with large basis sets for AgS. As a result, a more accurate dissociation energy of 17,542 cm−1 is predicted for the X2Π using an analytical potential energy curve, including spin–orbit effects. The calculated energy separation Te(A)∼ 10,500 cm−1 suggests
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Ab initio investigation on predissociation of the A2Σ+ state of the SeH radical induced by spin-orbit coupling J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-19 Changli Wei, Lidan Xiao, Jianlei Xue, Boris F. Minaev, Bing Yan
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The reliability of satellite-based lighttrends for dark sky areas in Austria J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-18 Stefan Wallner, Johannes Puschnig, Sarah Stidl
Globally, light pollution is a phenomenon rising in its appearance and threatening human health and natural habitats for flora and fauna. Consequently, there is a great interest in interdisciplinary communities to keep an eye on its occurrence and development. One possibility to obtain meaningful data are satellite-based observations, coming mainly from the Visible Infrared Imaging Radiometer Suite
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Blowing-ups of beam shape coefficients of Gaussian beams using finite series in generalized Lorenz–Mie theory J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-23 Luiz Felipe Votto, Gérard Gouesbet, Leonardo André Ambrosio
Compact closed-form expressions of the beam shape coefficients (BSCs) of Gaussian beams are obtained in the generalized Lorenz–Mie theory through the finite series (FS) method. As a result, such expressions have made it possible to more deeply understand the behaviour of the BSCs and, therefore, the scattering of Gaussian beams beyond the paraxial approximation. The blowing up, in particular, of FS
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MMP simulation of coupled gold nanoparticles as nanoantennae: Efficient tuning of localized surface plasmon resonances J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-23 Tahmineh Jalali
We study localized surface plasmon excitations on a set of two coupled two-dimensional (2D) gold nanoparticles as a nanoantenna by using the multiple multipoles (MMP) method. We investigate the plasmon spectrum as a function of the nanoparticle's size, the background index of refraction, and the separating gap between the nanoparticles in order to provide proper means to tune the underlying plasmon
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High resolution infrared spectra of neopentane: Rovibrational analysis of bands at 8.3–6.4 μm J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-23 Adam Pastorek, Peter Bernath, Vincent Boudon
High resolution (0.0014 cm−1) infrared spectra of neopentane (2,2-dimethylpropane) have been recorded at 203 K at the Canadian Light Source. Spectra were recorded in the infrared (8.3–6.4 μm) with 8 m of optical path. Neopentane is a spherical top molecule with Td (tetrahedral) symmetry. A low temperature is favorable for a detailed rotational analysis of its fundamental bands. This study focuses on
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Accurate determination of line intensity of H2O near 7181 cm−1 : SI-traceable measurement using primary trace-moisture standard in N2 gas J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-22 Koji Hashiguchi, Minami Amano, Agata Cygan, Daniel Lisak, Roman Ciuryło, Hisashi Abe
The absorption spectra of trace water vapor in N2 gas with a mole fraction of 500 nmol/mol in the pressure range of 20 kPa to 140 kPa were obtained near 7181 cm−1 using wavelength-meter-controlled cavity ring-down spectroscopy (WMC-CRDS). The reference gas (water vapor in N2 gas) was produced using a generation system of primary measurement standards for trace moisture in gases, where the amount of
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Critical review and experimental validation of radiative transfer models for semitransparent media containing large gas bubbles J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-22 Abhinav Bhanawat, Refet Ali Yalcin, Ricardo Martinez, Laurent Pilon
Many materials manufacturing, photobiochemical, and photoelectrochemical processes involve radiation transfer through foams and bubbly fluids. Controlling and optimizing these processes require accurate predictions of radiation transfer through semitransparent media. Previously developed models treated the heterogeneous media as homogeneous plane-parallel slabs with some effective radiation characteristics
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Influence of focusing intensity on optically pumped metastable rare gas based on laser-induced ionization J. Quant. Spectrosc. Radiat. Transf. (IF 2.3) Pub Date : 2023-09-17 Shu Hu, Ke Huang, Feng Zhu, Juntao Li, Baodong Gai, Xianglong Cai, Ming Xu, Jingwei Guo
When traditional optically pumped metastable rare gas laser (OPRGL) operating in high power output, a potential issue may arise: electromagnetic interference (EMI) caused by large volume atmospheric pressure discharge. This EMI problem imposes limitations on the application of OPRGL. We propose a new idea of preparing metastable atoms by 532 nm laser-induced preionization, which has the potential to