Results 41 to 50 of about 11,072 (199)
Xibei Gongye Daxue Xuebao, 2023 This paper proposes the use of aperture sharing synergistic operation in the structure of the metalens, together with the rational selection of the scattering unit size according to the linear relationship between the output phase and frequency of the ...
LYU Shuyuan +4 more
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Ecography, EarlyView.Animal coloration exhibits substantial biogeographic variation, reflecting complex adaptations to both abiotic and biotic environments. Although the evolutionary mechanisms underlying avian plumage coloration have been widely studied, geographic variation in plumage patterning has received far less attention.
Yuqing Han +8 more
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FACETS, 2018 Honey bees (Apis mellifera Linnaeus, 1758) potentially rely on a variety of visual cues when searching for flowers in the environment. Both chromatic and achromatic (brightness) components of flower signals have typically been considered simultaneously ...
Leslie Ng +2 more
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Microscopy Research and Technique, EarlyView.We have developed a semi‐automated shear flow platform using bright‐field optics and a machine‐learning analysis algorithm to dissect tumor‐microenvironment interactions. The algorithm quantifies the extent of adhesion at the single‐cell level and delivers consistent results within minutes instead of hours, facilitating high‐throughput analysis ...
Driti Ashok +7 more
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Design of a Bilayer Metalens for Red, Green, and Blue‐Achromatic Imaging with Wide Field of View
Advanced Photonics ResearchMetasurfaces offer precise manipulation of light through engineered subwavelength nanostructures. However, metalenses are challenging to design such that they simultaneously achieve wide field of view (WFOV), achromatic focusing at red (R), green (G ...
Seong‐Won Moon +4 more
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Geometric Achromatic and Pseudoachromatic Indices [PDF]
Graphs and Combinatorics, 2015 21 pages, 10 ...
Oswin Aichholzer +6 more
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Journal of Raman Spectroscopy, EarlyView.We report the development and use of a transmission Raman spectroscopy (TRS) system for a more accurate but nonintrusive way of authentication of API in coated HCQ tablets which otherwise is not possible using the backscattered (BS) configuration of Raman spectroscopy. The coating interference is found to be almost zero in case of the TRS and a greater
Vijay Kumar +5 more
wiley +1 more source
High-throughput broadband LWIR imaging via a 30° wide-field refractive-metalens hybrid system
JPhys PhotonicsWe demonstrate a high-performance 1G1M hybrid thermal imaging system combining a silicon refractive lens with a broadband achromatic metalens. By employing a concave surface design to achieve spatial separation of field angles, the system achieves a 30 ...
Guang-Yan Liu +9 more
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NTECARS: A Nonthermal Equilibrium CARS Spectra Fitting Code
Journal of Raman Spectroscopy, EarlyView.We present NTECARS, an open‐source code written in Julia for the calculation and fitting of CARS spectra under nonequilibrium conditions. Rovibrational distributions can be flexibly modeled and fitted for different use cases. The code currently implements CO2$$ \mathrm{C}{\mathrm{O}}_2 $$ and N2$$ {\mathrm{N}}_2 $$ molecules and is validated under ...
Christian A. Busch, Uwe Czarnetzki
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Laser &Photonics Reviews, EarlyView.Bayesian optimization combined with in situ quantitative phase imaging enables autonomous correction of layer‐height deviations in projection multi‐photon lithography. By jointly tuning model parameters and grayscale exposure settings, the method achieves more uniform and accurate layers within 300 prints, offering a fast, data‐efficient route to ...
Jason E. Johnson, Xianfan Xu
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