Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Han, Zheyi"'
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:
Huang, Luocheng, Han, Zheyi, Wirth-Singh, Anna, Saragadam, Vishwanath, Mukherjee, Saswata, Fröch, Johannes E., Tanguy, Quentin A. A., Rollag, Joshua, Gibson, Ricky, Hendrickson, Joshua R., Hon, Phillip W. C., Kigner, Orrin, Coppens, Zachary, Böhringer, Karl F., Veeraraghavan, Ashok, Majumdar, Arka
Subwavelength diffractive optics known as meta-optics have demonstrated the potential to significantly miniaturize imaging systems. However, despite impressive demonstrations, most meta-optical imaging systems suffer from strong chromatic aberrations
Externí odkaz:
http://arxiv.org/abs/2307.11385
Autor:
Wirth-Singh, Anna, Fröch, Johannes E., Han, Zheyi, Huang, Luocheng, Mukherjee, Saswata, Zhou, Zhihao, Coppens, Zachary, Böhringer, Karl F., Majumdar, Arka
A broad range of imaging and sensing technologies in the infrared require large Field-of-View (FoV) operation. To achieve this, traditional refractive systems often employ multiple elements to compensate for aberrations, which leads to excess size, w
Externí odkaz:
http://arxiv.org/abs/2304.14569
Autor:
Saragadam, Vishwanath, Han, Zheyi, Boominathan, Vivek, Huang, Luocheng, Tan, Shiyu, Fröch, Johannes E., Böhringer, Karl F., Baraniuk, Richard G., Majumdar, Arka, Veeraraghavan, Ashok
Foveated imaging provides a better tradeoff between situational awareness (field of view) and resolution and is critical in long-wavelength infrared regimes because of the size, weight, power, and cost of thermal sensors. We demonstrate computational
Externí odkaz:
http://arxiv.org/abs/2212.06345
Miniature varifocal lenses are crucial for many applications requiring compact optical systems. Here, utilizing electro-mechanically actuated 0.5-mm aperture infrared Alvarez meta-optics, we demonstrate 3.1 mm (200 diopters) focal length tuning with
Externí odkaz:
http://arxiv.org/abs/2111.07477
Publikováno v:
Microsyst Nanoeng 6, 79 (2020)
Miniature lenses with tunable focus are essential components for many modern applications involving compact optical systems. While several tunable lenses have been reported with various tuning mechanisms, they often still face challenges in power con
Externí odkaz:
http://arxiv.org/abs/2001.07800
Autor:
Ding, Yunhao, Zheng, Hongyuan, Chen, Zhiyi, Gao, Yuan, Xiao, Kaiyan, Gao, Zhiwei, Han, Zheyi, Xue, Yingang, Cai, Minghong
Publikováno v:
In Science of the Total Environment 15 August 2023 886
Autor:
Zheng, Hongyuan, Chen, Zhiyi, Yang, Kunde, Xiao, Kaiyan, Zhu, Jincai, Gao, Zhiwei, Han, Zheyi, Liu, Yanguang, Cai, Minghong
Publikováno v:
In Journal of Hazardous Materials 5 June 2023 451
Autor:
Ren, Peng, Wang, Mengmeng, Zheng, Hongyuan, Gao, Zhiwei, Han, Zheyi, Liu, Yanguang, Cai, Minghong
Publikováno v:
In Marine Pollution Bulletin April 2023 189
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