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 language | English |
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Article number | 012126 |
Journal | Journal of Physics: Conference Series |
Volume | 1410 |
Issue number | 1 |
DOIs | |
State | Published - 20 Dec 2019 |
Event | 6th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, SPbOPEN 2019 - Saint Petersburg, Russian Federation Duration: 22 Apr 2019 → 25 Apr 2019 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy