Flat-top laser beams over an extended range

Andra Naresh Kumar Reddy, Vishwa Pal, Simon Mahler, Asher A. Friesem, Nir Davidson

Research output: Contribution to journalConference articlepeer-review

Abstract

Designs based on single diffractive-optical-elements for obtaining flat-top laser intensity distributions that remain constant over a long range during free-space propagation are presented. Flat-top beams with different orders n exhibit a different range of propagation. For various working distances z, the resulting flat-top beam yields a different depth of focus. By controlling spectral properties of laser distributions, it is possible to maintain invariant flat-top intensity distributions for relatively long propagation distances.

Original languageEnglish
Article number012126
JournalJournal of Physics: Conference Series
Volume1410
Issue number1
DOIs
StatePublished - 20 Dec 2019
Event6th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, SPbOPEN 2019 - Saint Petersburg, Russian Federation
Duration: 22 Apr 201925 Apr 2019

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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