skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Preparation of random phase plates for laser beam smoothing

Abstract

Phase plates are required to remove aberrations from laser beams caused by inhomogeneities in the optical components of the laser. The first type of plate that we prepared consisted of a bi-level optical component that caused spatial smoothing of the beam by breaking it up into a fine scale spatial structure. This was made by etching a pattern directly into the substrate using HF/NH{sub 4}F. Components up to 80 cm in diameter were prepared but these are only 85% efficient because of beam losses in secondary maxima. Multilevel designs are more efficient and we have prepared 5 inch diameter samples with 16 levels. These require four separate etch steps but have efficiencies greater than 90%.

Authors:
; ;  [1]
  1. Lawrence Livermore National Lab., CA (United States)
Publication Date:
Research Org.:
International Society for Optical Engineering, Washington, DC (United States)
OSTI Identifier:
552204
Report Number(s):
CONF-9410155-Vol.2428
TRN: 98:009017
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 26. annual Boulder damage symposium: laser-induced damage in optical materials, Boulder, CO (United States), 24-26 Oct 1994; Other Information: PBD: [1995]; Related Information: Is Part Of Laser-induced damage in optical materials: 1994. Twenty-sixth annual Boulder damage symposium, proceedings; Bennett, H.E.; Guenther, A.H.; Kozlowski, M.R.; Newnam, B.E.; Soileau, M.J. [eds.]; PB: 722 p.
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; LASER MATERIALS; PROCESSING; LASER RADIATION; INERTIAL CONFINEMENT; PLATES; NOVA FACILITY

Citation Formats

Thomas, I.M., Dixit, S.N., and Rushford, M.C. Preparation of random phase plates for laser beam smoothing. United States: N. p., 1995. Web.
Thomas, I.M., Dixit, S.N., & Rushford, M.C. Preparation of random phase plates for laser beam smoothing. United States.
Thomas, I.M., Dixit, S.N., and Rushford, M.C. Sun . "Preparation of random phase plates for laser beam smoothing". United States.
@article{osti_552204,
title = {Preparation of random phase plates for laser beam smoothing},
author = {Thomas, I.M. and Dixit, S.N. and Rushford, M.C.},
abstractNote = {Phase plates are required to remove aberrations from laser beams caused by inhomogeneities in the optical components of the laser. The first type of plate that we prepared consisted of a bi-level optical component that caused spatial smoothing of the beam by breaking it up into a fine scale spatial structure. This was made by etching a pattern directly into the substrate using HF/NH{sub 4}F. Components up to 80 cm in diameter were prepared but these are only 85% efficient because of beam losses in secondary maxima. Multilevel designs are more efficient and we have prepared 5 inch diameter samples with 16 levels. These require four separate etch steps but have efficiencies greater than 90%.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: