JOURNAL ARTICLE

Optical differentiation in a polar coordinate system.

  • Published In: Applied Physics Letters, 2023, v. 122, n. 9. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Zhu, Junfan; Wang, Yifan; Gao, Fuhua; Zhang, Zhiyou 3 of 3

Abstract

The article focuses on the development and experimental realization of optical differentiation in a polar coordinate system, which is factorized into radial and angular differentiation. Using a Sagnac-like interferometer, the study demonstrates that these two orthogonal transfer operators can highlight variations along radial and angular directions of a transverse light field, offering a potentially more intuitive and informative approach than traditional Cartesian-coordinate-based differentiators. Experimental results with various patterns confirm the theoretical predictions, suggesting that polar-coordinate optical differentiation could enrich optical analog computing and expand applications in image recognition.

Additional Information

  • Source:Applied Physics Letters. 2023/02, Vol. 122, Issue 9, p1
  • Document Type:Article
  • Subject Area:History
  • Publication Date:2023
  • ISSN:0003-6951
  • DOI:10.1063/5.0140272
  • Accession Number:162581569
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