Efficient pseudo-nondiffracting beam shaping using a quasicontinuous-phasediffractive element

Authors
Wang, MR Yu, CY Varela, AJ
Citation
Mr. Wang et al., Efficient pseudo-nondiffracting beam shaping using a quasicontinuous-phasediffractive element, OPT ENG, 40(4), 2001, pp. 517-524
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICAL ENGINEERING
ISSN journal
00913286 → ACNP
Volume
40
Issue
4
Year of publication
2001
Pages
517 - 524
Database
ISI
SICI code
0091-3286(200104)40:4<517:EPBSUA>2.0.ZU;2-G
Abstract
We report a new diffractive beam shaper that transforms an incident Gaussia n beam into a pseudo-nondiffracting beam with a relatively flat on-axis int ensity distribution in the propagation range. The compact single-element be am shaper with a quasicontinuous phase structure demonstrated beam-forming efficiency of 87.5%. The effects of misalignment and beam size error on bea m-forming quality are also addressed. (C) 2001 Society of Photo-Optical Ins trumentation Engineers.