Designing an optical phase element for field of view enhancement by using wavelength multiplexing

Vismay Trivedi, Abhijit Sanjeev, Zeev Zalevsky

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Enhancing the image quality of the captured image is one of the prime objectives of modern image acquisition systems. These imaging systems can be broadly divided into two subsystems: an optical subsystem and a digital subsystem. There are various limitations associated with the optical and digital subsystems. One of the crucial parameters that are affected by the limitation of the physical extent of the recording or capturing system is the field of view (FOV). A reduced FOV can lead to loss of information thereby increasing the time for post-processing of images as well as introducing mechanical scanning to achieve a larger FOV. A simple yet efficient technique for FOV enhancement is demonstrated in this paper. An optical element is designed in such a way that it diffracts different wavelengths in the desired manner and the information from different regions of the object is carried by different wavelengths which upon combination at the sensor plane leads to enhancement of FOV.

Original languageEnglish
Pages (from-to)856-864
Number of pages9
JournalOptics Continuum
Volume2
Issue number4
DOIs
StatePublished - 15 Apr 2023

Bibliographical note

Publisher Copyright:
© 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

Funding

Acknowledgment. The authors would like to thank the Israeli Innovation Authority for the research grant #73178, entitled: Dynamic and controlled increase of resolution and field of view”. Vismay Trivedi would like to thank the PBC Fellowship Program for Outstanding Chinese and Indian Post-Doctoral Fellows.

FundersFunder number
Israel Innovation Authority73178

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