Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Alan Zhan"'
Publikováno v:
Advanced Photonics Research, Vol 3, Iss 5, Pp n/a-n/a (2022)
Metaoptics is a fast‐growing field with the potential to dramatically miniaturize image sensors. Unlike many other scientific endeavors, metaoptics are poised to make a technological and commercial impact within a few decades of inception. In parti
Externí odkaz:
https://doaj.org/article/cb98950b6e754447b98a56d3566d78f7
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract Freeform optics aims to expand the toolkit of optical elements by allowing for more complex phase geometries beyond rotational symmetry. Complex, asymmetric curvatures are employed to enhance the performance of optical components while minim
Externí odkaz:
https://doaj.org/article/c95dabf267de4206bb3c43b6486623ad
Autor:
Johannes E. Fröch, Shane Colburn, Alan Zhan, Zheyi Han, Zhuoran Fang, Abhi Saxena, Luocheng Huang, Karl F. Böhringer, Arka Majumdar
Publikováno v:
ACS Photonics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf4d186c850beb98de41b78d3c84fe7
https://doi.org/10.1021/acsphotonics.2c01017
https://doi.org/10.1021/acsphotonics.2c01017
Autor:
Kyung Seok Woo, Alan Zhang, Allison Arabelo, Timothy D. Brown, Minseong Park, A. Alec Talin, Elliot J. Fuller, Ravindra Singh Bisht, Xiaofeng Qian, Raymundo Arroyave, Shriram Ramanathan, Luke Thomas, R. Stanley Williams, Suhas Kumar
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract While digital computers rely on software-generated pseudo-random number generators, hardware-based true random number generators (TRNGs), which employ the natural physics of the underlying hardware, provide true stochasticity, and power and
Externí odkaz:
https://doaj.org/article/2582b4e475ea4c4097b339c5d489c17b
Extended depth of focus (EDOF) optics can enable lower complexity optical imaging systems when compared to active focusing solutions. With existing EDOF optics, however, it is difficult to achieve high resolution and high collection efficiency simult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fbe357f8799b8c92ede64cf0d007b03
http://arxiv.org/abs/2106.15807
http://arxiv.org/abs/2106.15807
Autor:
Joshua R. Hendrickson, Evan M. Smith, Ricky Gibson, Alan Zhan, Arka Majumdar, James Whitehead
Publikováno v:
Science Advances
We report a design method that can generate an array of wavelength-scale spheres to produce specified 3D optical field patterns.
Controlling the propagation of optical fields in three dimensions using arrays of discrete dielectric scatterers is
Controlling the propagation of optical fields in three dimensions using arrays of discrete dielectric scatterers is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7bf591247aaf340279e2f7b01b1dc98
https://pubmed.ncbi.nlm.nih.gov/31620558
https://pubmed.ncbi.nlm.nih.gov/31620558
Publikováno v:
High Contrast Metastructures VIII.
Lenses with tunable focal length are crucial to the operation of many optical systems, as in photography, mixed reality, and microscopy. Various technologies exist that support this behavior, but they often entail high power consumption and rely on b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45ba7f0f16c2debacb99380682ddfa25
https://doi.org/10.1117/12.2510998
https://doi.org/10.1117/12.2510998
Publikováno v:
Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2134a67052f49ae042859ff5aead03ae
https://doi.org/10.1364/cleo_at.2019.jth2a.47
https://doi.org/10.1364/cleo_at.2019.jth2a.47
Autor:
Alan Zhan, Shane Colburn, Rahul Trivedi, Taylor K. Fryett, Christopher M. Dodson, Arka Majumdar
Publikováno v:
Scopus-Elsevier
The miniaturization of current image sensors is largely limited by the volume of the optical elements. Using a sub-wavelength patterned quasi-periodic structure, also known as a metasurface, one can build planar optical elements based on the principl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ce7bccf7a7c147b631b2edcdab8ed51
https://doi.org/10.1021/acsphotonics.5b00660
https://doi.org/10.1021/acsphotonics.5b00660
Publikováno v:
OSA Continuum. 3:89
Large-area metasurfaces composed of discrete wavelength-scale scatterers present an extremely large number of degrees of freedom to engineer an optical element. These degrees of freedom provide tremendous design flexibility, and a central challenge i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::753afa7f2ef76c4ba05c48a80b1528de
https://doi.org/10.1364/osac.376537
https://doi.org/10.1364/osac.376537