16 citations · 35 across the 12 of their papers we have counts for
13 papers
Asymmetric imaging: Reciprocity bounds and manifestations
Romil Audhkhasi, Anna Wirth-Singh, Rose Johnson +6
Recent demonstrations of unidirectional imaging using diffractive multilayers have brought a concept akin to optical isolation to imaging, yet the fundamental limits of such asymme…
Complex wavefront engineering via decoupled space-time modulation
Virat Tara, Anna Wirth-Singh, Johannes E. Fröch +1
Solid-state Spatial Light Modulators (SLMs) are fundamentally limited in their ability to achieve high spatial complexity and high temporal bandwidth simultaneously. High-speed, lo…
Singleshot Multispectral Imaging via a Chromatic Metalens Array
Romil Audhkhasi, Ningzhi Xie, Johannes E. Fröch +1
Real time, singleshot multispectral imaging systems are crucial for environment monitoring and biomedical imaging. Most singleshot multispectral imagers rely on complex computation…
Computational metaoptics for imaging
Charles Roques-Carmes, Kai Wang, Yuanmu Yang +2
Metasurfaces -- ultrathin structures composed of subwavelength optical elements -- have revolutionized light manipulation by enabling precise control over electromagnetic waves' am…
Computed tomography using meta-optics
Maksym Zhelyeznuyakov, Johannes E. Fröch, Shane Colburn +2
Computer vision tasks require processing large amounts of data to perform image classification, segmentation, and feature extraction. Optical preprocessors can potentially reduce t…
Transferable polychromatic optical encoder for neural networks
Minho Choi, Jinlin Xiang, Anna Wirth-Singh +3
Artificial neural networks (ANNs) have fundamentally transformed the field of computer vision, providing unprecedented performance. However, these ANNs for image processing demand…
Broadband long-range thermal imaging via meta-correctors
Cameron Vo, Owen Anderson, Anna Wirth-Singh +3
Long-range imaging in the thermal infrared band is critical for applications such as environmental monitoring, industrial inspections, and surveillance. To achieve high quality ima…
Meta-optical Imaging at Thermal Wavelengths
Anna Wirth-Singh, Aurelia M. Brook, Rose Johnson +2
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…
End-to-end metasurface design for temperature imaging via broadband Planck-radiation regression
Sophie Fisher, Gaurav Arya, Arka Majumdar +2
We present a theoretical framework for temperature imaging from long-wavelength infrared thermal radiation (e.g. 8-12 m) through the end-to-end design of a metasurface-optics fr…
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…
Statistics dependent spectral properties of random arrays of particles
Romil Audhkhasi, Maksym Zhelyeznyakov, Steven Brunton +1
The ability to tailor the spectral response of photonic devices is paramount to the advancement of a broad range of applications. The vast design space offered by disordered optica…
Quantitative Phase Imaging with a Metalens
Aamod Shanker, Johannes Froech, Saswata Mukherjee +3
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 extracte…
2D beam shaping via 1D spatial light modulation
James E. M. Whitehead, Albert Ryou, Shane Colburn +2
Many emerging reconfigurable optical systems are limited by routing complexity when producing dynamic, two-dimensional (2D) electric fields. Using a gradient-based inverse designed…