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Title: Double lens device for tunable harmonic generation of laser beams in KBBF/RBBF crystals or other non-linear optic materials

A method and apparatus to generate harmonically related laser wavelengths includes a pair of lenses at opposing faces of a non-linear optical material. The lenses are configured to promote incoming and outgoing beams to be normal to each outer lens surface over a range of acceptance angles of the incoming laser beam. This reduces reflection loss for higher efficiency operation. Additionally, the lenses allow a wider range of wavelengths for lasers for more universal application. Examples of the lenses include plano-cylindrical and plano-spherical form factors.
Inventors:
Issue Date:
OSTI Identifier:
1375944
Assignee:
Iowa State Research Foundation, Inc. AMES
Patent Number(s):
9,740,081
Application Number:
14/627,925
Contract Number:
AC02-07CH11358
Resource Relation:
Patent File Date: 2015 Feb 20
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Other works cited in this record:

Nonlinear Optical Devices Employing Optimized Focusing
patent, September 1970

Wavelength conversion device employing Bessel beams with parallel polarization
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Nonlinear optical (NLO) beryllate materials
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patent-application, September 2011

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journal, May 2009

Improved Sellmeier Equations and Phase-Matching Characteristics in Deep-Ultraviolet Region of KBe2BO3F2 Crystal
journal, April 2008
  • Chen, Chuangtian; Wang, Guiling; Wang, Xiaoyang
  • IEEE Journal of Quantum Electronics, Vol. 44, Issue 7, p. 617-621
  • DOI: 10.1109/JQE.2008.920324

Tunable vacuum ultraviolet laser based spectrometer for angle resolved photoemission spectroscopy
journal, March 2014
  • Jiang, Rui; Mou, Daixiang; Wu, Yun
  • Review of Scientific Instruments, Vol. 85, Issue 3, Article No. 033902
  • DOI: 10.1063/1.4867517

175 to 210 nm widely tunable deep-ultraviolet light generation based on KBBF crystal
journal, September 2008

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