Exploiting universal nonlocal dispersion in optically active materials for spectro-polarimetric computational imaging

Xueji Wang; Todd Van Mechelen; Sathwik Bharadwaj; Md Roknuzzaman; Fanglin Bao; Rajib Rahman; Zubin Jacob

doi:10.1186/s43593-024-00078-2

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Exploiting universal nonlocal dispersion in optically active materials for spectro-polarimetric computational imaging

eLight Vol. 4, (2024)

Research Article | Updated：2025-04-15

- Exploiting universal nonlocal dispersion in optically active materials for spectro-polarimetric computational imaging
- Affiliations：
- Author bio：
  
  gzjacob@purdue.edu
- Funds：
- DOI：10.1186/s43593-024-00078-2
  CLC：
- Received：08 July 2024，
  
  Revised：02 October 2024，
  
  Accepted：2024-10-12，
  
  Published Online：06 December 2024，
  
  Published：2024-12
- Accepted：
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Xueji Wang, Todd Van Mechelen, Sathwik Bharadwaj, et al. Exploiting universal nonlocal dispersion in optically active materials for spectro-polarimetric computational imaging[J]. Elight, 2024, 4.
DOI：

Xueji Wang, Todd Van Mechelen, Sathwik Bharadwaj, et al. Exploiting universal nonlocal dispersion in optically active materials for spectro-polarimetric computational imaging[J]. Elight, 2024, 4. DOI： 10.1186/s43593-024-00078-2.

摘要

Abstract

Recent years have seen significant advancements in exploring novel light-matter interactions such as hyperbolic dispersion within natural crystals. However

current studies have predominantly concentrated on local optical response of materials characterized by a dielectric tensor without spatial dispersion. Here

we investigate the nonlocal response in optically-active crystals with screw symmetries

revealing their lossless

super-dispersive properties compared to traditional optical response functions. We leverage this universal nonlocal dispersion

i.e. the dispersion of optical rotatory power

to explore a novel spectral de-multiplexing scheme compared to conventional gratings

prisms and metasurfaces. We design and demonstrate an ‘Nonlocal-Cam’ - a camera that exploits nonlocal dispersion through sampling of polarized spectral states and the application of computational spectral reconstruction algorithms. The Nonlocal-Cam captures information in both laboratory and outdoor field experiments which is unavailable to traditional intensity cameras - the spectral texture of polarization. Merging the fields of nonlocal electrodynamics and computational imaging

our work paves the way for exploiting nonlocal optics of optically active materials in a variety of applications

from biological microscopy to physics-driven machine vision and remote sensing.

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Keywords

references

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