Abstract
We report a new diffractive beam shaper that transforms an incident Gaussian beam into a pseudo-nondiffracting beam with a relatively flat on-axis intensity distribution in the propagation range. The compact single-element beam shaper with a quasicontinuous phase structure demonstrated beam-forming efficiency of 87.5%. The effects of misalignment and beam size error on beam-forming quality are also addressed.
Original language | English |
---|---|
Pages (from-to) | 517-524 |
Number of pages | 8 |
Journal | Optical Engineering |
Volume | 40 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Apr 2001 |
Externally published | Yes |
Keywords
- Beam shaping
- Diffractive optical elements
- Gray-level mask
- Nondiffracting beam
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Engineering