110 citations · 142 across the 6 of their papers we have counts for
6 papers
Beating bandwidth limits for large aperture broadband nano-optics
Johannes E. Fröch, Praneeth K. Chakravarthula, Jipeng Sun +10
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 a…
Broadband Thermal Imaging using Meta-Optics
Luocheng Huang, Zheyi Han, Anna Wirth-Singh +13
Subwavelength diffractive optics known as meta-optics have demonstrated the potential to significantly miniaturize imaging systems. However, despite impressive demonstrations, most…
Large Field-of-View Thermal Imaging via All-Silicon Meta-Optics
Anna Wirth-Singh, Johannes E. Fröch, Zheyi Han +6
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…
Foveated Thermal Computational Imaging in the Wild Using All-Silicon Meta-Optics
Vishwanath Saragadam, Zheyi Han, Vivek Boominathan +7
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, we…
Millimeter-scale focal length tuning with MEMS-integrated meta-optics employing high-throughput fabrication
Zheyi Han, Shane Colburn, Arka Majumdar +1
Miniature varifocal lenses are crucial for many applications requiring compact optical systems. Here, utilizing electro-mechanically actuated 0.5-mm aperture infrared Alvarez meta-…
MEMS-actuated Metasurface Alvarez Lens
Zheyi Han, Shane Colburn, Arka Majumdar +1
Miniature lenses with tunable focus are essential components for many modern applications involving compact optical systems. While several tunable lenses have been reported with va…