Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Zhan, Alan"'
Autor:
Fröch, Johannes E., Chakravarthula, Praneeth K., Sun, Jipeng, Tseng, Ethan, Colburn, Shane, Zhan, Alan, Miller, Forrest, Wirth-Singh, Anna, Tanguy, Quentin A. A., Han, Zheyi, Böhringer, Karl F., Heide, Felix, Majumdar, Arka
Flat optics have been proposed as an attractive approach for the implementation of new imaging and sensing modalities to replace and augment refractive optics. However, chromatic aberrations impose fundamental limitations on diffractive flat optics.
Externí odkaz:
http://arxiv.org/abs/2402.06824
Autor:
Froech, Johannes E., Huang, Luocheng, Tanguy, Quentin A. A., Colburn, Shane, Zhan, Alan, Ravagli, Andrea, Seibel, Eric J., Boehringer, Karl, Majumdar, Arka
Endoscopes are an important component for the development of minimally invasive surgeries. Their size is one of the most critical aspects, because smaller and less rigid endoscopes enable higher agility, facilitate larger accessibility, and induce le
Externí odkaz:
http://arxiv.org/abs/2211.00808
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:
http://arxiv.org/abs/2106.15807
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:
http://arxiv.org/abs/1908.10466
Publikováno v:
Applied Optics Vol. 57, Issue 6, pp. 1437-1446 (2018)
Arrays of wavelength scale scatterers are a promising platform for designing optical elements with a compact footprint. The large number of degrees of freedom in this system allows for unique and plentiful functionalities. However, the many variables
Externí odkaz:
http://arxiv.org/abs/1806.06268
Varifocal lenses are essential components of dynamic optical systems with applications in photography, mixed reality, and microscopy. Metasurface optics has strong potential for creating tunable flat optics. Existing tunable metalenses, however, typi
Externí odkaz:
http://arxiv.org/abs/1805.07832
Sub-wavelength diffractive optics, commonly known as metasurfaces, have recently garnered significant attention for their ability to create ultra-thin flat lenses with extremely short focal lengths. Several materials with different refractive indices
Externí odkaz:
http://arxiv.org/abs/1805.04659
Conventional imaging systems comprise large and expensive optical components which successively mitigate aberrations. Metasurface optics offers a route to miniaturize imaging systems by replacing bulky components with flat and compact implementations
Externí odkaz:
http://arxiv.org/abs/1802.03791
Unprecedented material compatibility and ease of integration, in addition to the unique and diverse optoelectronic properties of layered materials have generated significant interest in their utilization in nanophotonic devices. While initial nanopho
Externí odkaz:
http://arxiv.org/abs/1708.05099
The ease of integration coupled with large second-order nonlinear coefficient of atomically thin layered 2D materials presents a unique opportunity to realize second-order nonlinearity in silicon compatible integrated photonic system. However, the ph
Externí odkaz:
http://arxiv.org/abs/1706.09392