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Math, color, and new additions to the team: editorial.

P Scott Carney,

Editor-in-Chief P. Scott Carney introduces the Journal's newest Topical Editors, John Schotland and Minchen Wei. ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):ED4-ED5]

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δ-SPN approximation for numerical modeling of directional sources and scattering.

Nishigandha Patil, Naren Naik,

We propose the <i>δ</i>-<i>S</i><i>P</i><sub>N</sub> approximation for the frequency domain coupled radiative transfer equations modeling fluorescence with collimated incident beams and present its numerical implementation using the finite element method. The performance of the proposed model is investigated with respect to Monte Carlo simulations and the standard <i>S</i><i>P</i><sub>N</sub> approximation over sub-centimeter ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1681-1695]

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Evaluation of the Waggoner computerized D15 color vision test using an iPad device.

Ali Almustanyir, Reema Alduhayan, Mosaad Alhassan, Kholoud Bokhary, Balsam Alabdulkader,

The W-D15 test, a computerized variant of the F-D15 test, is used to determine whether an individual with a color vision defect can safely perform color-related tasks. This study evaluated the performance of the W-D15 test using an iPad. Fifty-nine color normal and 61 color vision defect subjects participated. Participants ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1647-1655]

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Modal decomposition of complex optical fields using convolutional neural networks.

Mitchell G Schiworski, Daniel D Brown, David J Ottaway,

Recent studies have shown convolutional neural networks (CNNs) can be trained to perform modal decomposition using intensity images of optical fields. A fundamental limitation of these techniques is that the modal phases cannot be uniquely calculated using a single intensity image. The knowledge of modal phases is crucial for wavefront ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1603-1611]

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Collimation and finite-size effects in suspended resonant guided-mode gratings.

Christian Toft-Vandborg, Alexios Parthenopoulos, Ali Akbar Darki, Aurélien Dantan,

The optical transmission of resonant guided-mode gratings patterned on suspended silicon nitride thin films and illuminated at normal incidence with a Gaussian beam is investigated both experimentally and theoretically. Effects due to the beam focusing and its finite size are accounted for by a phenomenological coupled-mode model whose predictions are ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1714-1725]

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Refracting and reflecting interfaces transforming a given wavefront into another one.

Omar de Jesús Cabrera-Rosas, Ernesto Espíndola-Ramos, Adriana González-Juárez, Israel Julián-Macías, Magdalena Marciano-Melchor, Paula Ortega-Vidals, Carolina Rickenstorff-Parrao, Edwin Román-Hernández, Gilberto Silva-Ortigoza, Ramón Silva-Ortigoza, Citlalli Teresa Sosa-Sánchez,

The aim of this work is threefold. First, following Luneburg and using our own notation, we review the Cartesian ovals. Second, we obtain analytical expressions for the reflecting and refracting surfaces that transform a prescribed smooth two-dimensional wavefront into a spherical one. These results are applied to show that the ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1662-1672]

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Modeling fluorescence reemission in the one-dimensional radiative transfer problem using the P3 approximation.

Luke J Sandilands,

A model of radiative transport in fluorescent, scattering media that accounts for fluorescence reabsorption and reemission effects is discussed. The model is studied in a simplified one-dimensional geometry using the P3 approximation. An example calculation of a model system, sintered polytetrafluoroethylene doped with rhodamine 6G, is used to illustrate the ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1631-1639]

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Convergent numerical method for the reflector antenna problem via optimal transport on the sphere.

Brittany Froese Hamfeldt, Axel G R Turnquist,

We consider a partial differential equation (PDE) approach to numerically solve the reflector antenna problem by solving an optimal transport problem on the unit sphere with cost function <i>c</i>(<i>x</i>,<i>y</i>)=-2<i>log</i>⁡||<i>x</i>-<i>y</i>||. At each point on the sphere, we replace the surface PDE with a generalized Monge-Ampère type equation posed on the local ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1704-1713]

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Light detection and ranging (lidar): introduction.

Zeev Zalevsky, Gerald S Buller, Tao Chen, Moshik Cohen, Rory Barton-Grimley,

In this introduction we provide an overview of the papers that were accepted for publication in the special issue on light detection and ranging (lidar). Four of the papers were published in JOSA A, and four were published in JOSA B. They represent different aspects of this important and fast-growing ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):LID1-LID2]

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Occlusion disparity refinement for stereo matching through the geometric prior-based adaptive label search.

Junwei Wang, Wei Zhou, Ziheng Qian, Jiaqi Shen, Hanming Guo,

In stereo matching, occlusion disparity refinement is one of the challenges when attempting to improve disparity accuracy. In order to refine the disparity in occluded regions, a geometric prior guided adaptive label search method and sequential disparity filling strategy are proposed. In our method, considering the scene structural correlation between ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1619-1630]

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Formulation of diffraction efficiencies of binary phase gratings for array illumination with ultrashort pulse beams.

Jun Amako, Hidetoshi Nakano,

We present simple formulas for the diffraction efficiencies of a binary phase grating that performs array illumination with ultrashort pulse beams. Using scalar diffraction theory, we formulated the efficiencies as a function of pulse spectral width by Fourier-transforming the complex-modulated frequency spectra of diffracted pulses in the far-field region. From ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1696-1703]

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Study of the origin of the complex beam profile of a hole-coupled free electron laser oscillator.

Heishun Zen, Hideaki Ohgaki,

Hole coupling is a way to extract laser beams from an optical cavity through a hole on a cavity mirror. Hole coupling is often used in free electron laser oscillators and inherently causes a non-Gaussian beam profile at user stations, which are more than 10 m apart from the coupling ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1656-1661]

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Quality factor of partially coherent Airy beams in a turbulent atmosphere.

Wei Wen, Xianwu Mi, Shaohua Xiang,

The quality factor of a partially coherent Airy beam in a turbulent atmosphere is investigated with the help of the extended Huygens-Fresnel integral formula and the Wigner distribution. From the numerical results, based on the analytical formula, we find that increasing the inner scale or decreasing the structure constant of ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1612-1618]

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Pearcey beam tuning and caustic evolution.

Yihao Wang,

Based on the principle of catastrophe theory, by adding an additional phase factor, we adjust Pearcey beams, which therefore have a more flexible and controllable light-field structure. The basic optical structure and evolution characteristics of caustics are also investigated. In particular, we derive analytical equations of caustics for Pearcey beams ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1726-1731]

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Fast wavelet-based photoacoustic microscopy.

Hassan Abbasi, Seyed Masood Mostafavi, Zahra Kavehvash,

A novel photoacoustic microscopy (PAM) structure, based on Haar wavelet patterns, is proposed in this paper. Its main goal is to mitigate the PAM imaging resolution and thus the time of its sampling process without compromising the image quality. Owing to the intrinsic nature of wavelet transform, this structure collects ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1673-1680]

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Depth-based removal of thermal reflection with the light-field theory.

Xueqian Jin, Ming Li, Chenglei Peng, Sidan Du, Yang Li,

Thermal imaging is a useful imaging technique in many scenarios. It can capture the temperature distribution of scenes in the dark and see through sparse smoke and dust. However, some surfaces such as steel and glass with high reflectivity lead to a reflection problem in thermal imaging, while heavy mist ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(11):1594-1602]

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Simple formula used to predict superluminal reflection on a multidielectric mirror.

L Dettwiller,

For a multidielectric mirror, which is a stacking of <i>N</i> identical patterns, each consisting of several layers, we consider the limit <i>ρ</i><sub>∞</sub> of its reflection coefficient <i>ρ</i><sub>N</sub> when <i>N</i> tends to infinity. When the weak absorption by the pattern is considered, we prove that the sequence of functions <i>ρ</i><sub>N</sub> of ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):1501-1510]

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Refraction of space-time wave packets: II. experiments at normal incidence.

Alyssa M Allende Motz, Murat Yessenov, Basanta Bhaduri, Ayman F Abouraddy,

The refraction of space-time (ST) wave packets offers many fascinating surprises with respect to conventional pulsed beams. In the first paper in this sequence [J. Opt. Soc. Am. A38, 1409 (2021)10.1364/JOSAA.430105], we theoretically described the refraction of all families of ST wave packets at normal and oblique incidence at a ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):1450-1461]

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Theoretical versus empirical measures of retinal magnification for scaling AOSLO images.

H Heitkotter, A E Salmon, R E Linderman, J Porter, J Carroll,

The adaptive optics scanning light ophthalmoscope (AOSLO) allows cellular resolution imaging of the living retina. The accuracy of many quantitative measurements made from these images requires accurate estimates of the lateral scale of the images. Here, we used trial lenses, which are known to affect the relative magnification of the ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):1400-1408]

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Millisecond exoplanet imaging: I. method and simulation results.

Alexander T Rodack, Richard A Frazin, Jared R Males, Olivier Guyon,

One of the top priorities in observational astronomy is the direct imaging and characterization of extrasolar planets (exoplanets) and planetary systems. Direct images of rocky exoplanets are of particular interest in the search for life beyond the Earth, but they tend to be rather challenging targets since they are orders-of-magnitude ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):1541-1556]

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Simple method to estimate the optical turbulence over snow and ice.

Qike Yang, Xiaoqing Wu, Su Wu, Yajuan Han, Changdong Su, Shitai Zhang, Chun Qing,

A simple physics-based method for estimating optical turbulence (<i>C</i><i>n</i>2) within the surface layer over snow and ice is proposed, using the Tatarski equation with an improved outer scale model. This improved outer scale model mainly requires the calculation of the wind shear and temperature gradients. Based on the measurements from ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):1483-1488]

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High-sensitivity methane sensor composed of photonic quasi-crystal fiber based on surface plasmon resonance.

Qiang Liu, Jin Zhao, Yudan Sun, Wei Liu, Chao Liu, Jingwei Lv, Tingting Lv, Yu Jiang, Binwen Li, Famei Wang, Tao Sun, Paul K Chu,

A photonic quasi-crystal fiber (PQF) methane sensor based on surface plasmon resonance (SPR) is designed and described. The double-side polished six-fold photonic quasi-crystal fiber coated with a silver film produces enhanced SPR effects and sensitivity. A nanostructured thin film with cryptophane-E-doped polysiloxane is deposited on silver as the methane-sensitive surface ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):1438-1442]

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Fourier-basis structured illumination imaging with an array of integrated optical phased arrays.

Nathan Dostart, Bohan Zhang, Michael Brand, Daniel Feldkhun, Miloš Popović, Kelvin Wagner,

Active imaging and structured illumination originated in "bulk" optical systems: free-space beams controlled with lenses, spatial light modulators, gratings, and mirrors to structure the optical diffraction and direct the beams onto the target. Recently, optical phased arrays have been developed with the goal of replacing traditional bulk active imaging systems ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):B19-B28]

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Effects of lidar and radar resolution on DNN-based vehicle detection.

Itai Orr, Harel Damari, Meir Halachmi, Mark Raifel, Kfir Twizer, Moshik Cohen, Zeev Zalevsky,

Vehicle detection plays a critical role in autonomous driving, where two central sensing modalities are lidar and radar. Although many deep neural network (DNN)-based methods have been proposed to solve this task, a systematic and methodological examination on the influence of the data on those methods is still missing. In ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):B29-B36]

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Combined diffractive optical elements with adjustable optical properties controlled by a relative rotation: tutorial.

S Bernet,

A pair of adjacent transmissive diffractive optical elements (DOEs) forms a combined DOE with tunable optical properties, as, for example, a diffractive lens with an adjustable focal length. The optical properties are controlled by a relative movement of the two DOEs, such as a translation or a rotation around the ... Read more >>

J Opt Soc Am A Opt Image Sci Vis (Journal of the Optical Society of America. A, Optics, image science, and vision)
[2021, 38(10):1521-1540]

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