Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Fröch, Johannes"'
The field of meta-optics has grown to include metalenses spanning the ultraviolet to terahertz regimes. Imaging is a key application of meta-optics, with recent works demonstrating meta-optical imaging with advanced functionalities including wide fie
Externí odkaz:
http://arxiv.org/abs/2410.11122
Autor:
Meng, Weijia, Fröch, Johannes E., Cheng, Ke, Li, Baoli, Majumdar, Arka, Maier, Stefan A., Ren, Haoran, Gu, Min, Fang, Xinyuan
Ultrathin metasurface holograms, with thicknesses comparable to the operating wavelength, leverage multiple degrees of freedom of light to address independent image channels, thereby significantly enhancing information capacity. Although the waveleng
Externí odkaz:
http://arxiv.org/abs/2408.16342
Autor:
Wirth-Singh, Anna, Jimenez, Arturo Martin, Choi, Minho, Fröch, Johannes E., Johnson, Rose, Teichmann, Tina Le, Coppens, Zachary, Majumdar, Arka
Lenses with dynamic focal length, also called zoom functionality, enable a variety of applications related to imaging and sensing. The traditional approach of stacking refractive lenses to achieve this functionality results in an expensive, heavy opt
Externí odkaz:
http://arxiv.org/abs/2407.11255
Autor:
Wirth-Singh, Anna, Fröch, Johannes E., Yang, Fan, Martin, Louis, Zhang, Hualiang, Tanguy, Quentin T., Zhou, Zhihao, Huang, Luocheng, John, Demis D., Stamenic, Biljana, Hu, Juejun, Gu, Tian, Majumdar, Arka
Wide field of view and light weight optics are critical for advanced eyewear, with applications in augmented/virtual reality and night vision. Conventional refractive lenses are often stacked to correct aberrations at wide field of view, leading to l
Externí odkaz:
http://arxiv.org/abs/2406.14725
Autor:
Wirth-Singh, Anna, Xiang, Jinlin, Choi, Minho, Fröch, Johannes E., Huang, Luocheng, Colburn, Shane, Shlizerman, Eli, Majumdar, Arka
Optical and hybrid convolutional neural networks (CNNs) recently have become of increasing interest to achieve low-latency, low-power image classification and computer vision tasks. However, implementing optical nonlinearity is challenging, and omitt
Externí odkaz:
http://arxiv.org/abs/2406.06534
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
Publikováno v:
Nano Letters 2024
Miniaturized photodetectors are becoming increasingly sought-after components for a range of next generation technologies, such as autonomous vehicles, integrated wearable devices, or gadgets embedded in the Internet of Things. A major challenge, how
Externí odkaz:
http://arxiv.org/abs/2312.05395
Autor:
Shanker, Aamod, Froech, Johannes, Mukherjee, Saswata, Zhelyeznyakov, Maksym, Seibel, Eric, Majumdar, Arka
Quantitative phase imaging (QPI) recovers the exact wavefront of light from the intensity measured by a camera. Topographical maps of translucent microscopic bodies can be extracted from these quantified phase shifts. We demonstrate quantitative phas
Externí odkaz:
http://arxiv.org/abs/2309.11348
Autor:
Wei, Kaixuan, Li, Xiao, Froech, Johannes, Chakravarthula, Praneeth, Whitehead, James, Tseng, Ethan, Majumdar, Arka, Heide, Felix
The explosive growth of computation and energy cost of artificial intelligence has spurred strong interests in new computing modalities as potential alternatives to conventional electronic processors. Photonic processors that execute operations using
Externí odkaz:
http://arxiv.org/abs/2308.03407
Autor:
Fang, Zhuoran, Chen, Rui, Fröch, Johannes E., Tanguy, Quentin A. A., Khan, Asir Intisar, Wu, Xiangjin, Tara, Virat, Manna, Arnab, Sharp, David, Munley, Christopher, Miller, Forrest, Zhao, Yang, Geiger, Sarah J., Böhringer, Karl F., Reynolds, Matthew, Pop, Eric, Majumdar, Arka
Free-space modulation of light is crucial for many applications, from light detection and ranging to virtual or augmented reality. Traditional means of modulating free-space light involves spatial light modulators based on liquid crystals and microel
Externí odkaz:
http://arxiv.org/abs/2307.12103