Speckle filtering through nonlinear wave mixing
Abstract
Light scattering by disordered media is a ubiquitous effect. After passing through them, the light acquires a random phase, masking or destroying associated information. Filtering this random phase is of paramount importance to many applications, such as sensing, imaging, and optical communication, to cite a few, and it is commonly achieved through computationally extensive post-processing using statistical correlation. In this work, we show that mixing noisy optical modes of various complexity in a second-order nonlinear medium can be used for efficient and straightforward filtering of a random wavefront under sum-frequency generation processes without utilizing correlation-based calculations.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 06, 2021
- Source ID
- 10.1364/ol.434150
Entities
People
- Alcenísio J. Jesus‐Silva
- D. G. Pires
- E. J. S. Fonseca
- J. C. A. Rocha
- J. G. M. N. Neto
- Natalia M. Litchinitser
Organizations
- Alagoas State Research Foundation
- Coordenação de Aperfeicoamento de Pessoal de Nível Superior
- Duke University
- Instituto Nacional de Ciência e Tecnologia de Informação Quântica
- National Council for Scientific and Technological Development
- Universidade Federal de Alagoas