Experimental investigation of single and twin AgGaSe2 crystals for CW 10.2 μm SHG

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Two twin AgGaSe2 crystals (lc=20 mm) cut for the second-harmonic generation (SHG) of 10.2 μm radiation have been submitted to up to 1.3 W single-mode continuous-wave (CW) output of a CO2 laser focused to a decreasing beam radius w0. For a power density exceeding 1.6 kW/cm2, corresponding to a focusing parameter l= lc zR far under the theoretical optimum one, the second-harmonic (SH) generated power starts to saturate due to thermal effects. The study of the conversion efficiency versus the focusing parameter for the walkoff-compensated twin device reveals that this two-crystal device is more efficient than would be a single crystal of length 2lc, despite the small walkoff angle in this material.

Original languageEnglish
Pages (from-to)320-326
Number of pages7
JournalOptics Communications
Volume119
Issue number3-4
DOIs
Publication statusPublished - Sep 1 1995
Externally publishedYes

Fingerprint

Harmonic generation
continuous radiation
harmonic generations
Crystals
Thermal effects
Conversion efficiency
crystals
temperature effects
radiant flux density
Single crystals
harmonics
Radiation
radii
Lasers
output
single crystals
radiation
lasers

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Experimental investigation of single and twin AgGaSe2 crystals for CW 10.2 μm SHG. / Zondy, Jean Jacques.

In: Optics Communications, Vol. 119, No. 3-4, 01.09.1995, p. 320-326.

Research output: Contribution to journalArticle

@article{b7c19e5caed741a086d8431bb8a122c6,
title = "Experimental investigation of single and twin AgGaSe2 crystals for CW 10.2 μm SHG",
abstract = "Two twin AgGaSe2 crystals (lc=20 mm) cut for the second-harmonic generation (SHG) of 10.2 μm radiation have been submitted to up to 1.3 W single-mode continuous-wave (CW) output of a CO2 laser focused to a decreasing beam radius w0. For a power density exceeding 1.6 kW/cm2, corresponding to a focusing parameter l= lc zR far under the theoretical optimum one, the second-harmonic (SH) generated power starts to saturate due to thermal effects. The study of the conversion efficiency versus the focusing parameter for the walkoff-compensated twin device reveals that this two-crystal device is more efficient than would be a single crystal of length 2lc, despite the small walkoff angle in this material.",
author = "Zondy, {Jean Jacques}",
year = "1995",
month = "9",
day = "1",
doi = "10.1016/0030-4018(95)00341-5",
language = "English",
volume = "119",
pages = "320--326",
journal = "Optics Communications",
issn = "0030-4018",
publisher = "Elsevier",
number = "3-4",

}

TY - JOUR

T1 - Experimental investigation of single and twin AgGaSe2 crystals for CW 10.2 μm SHG

AU - Zondy, Jean Jacques

PY - 1995/9/1

Y1 - 1995/9/1

N2 - Two twin AgGaSe2 crystals (lc=20 mm) cut for the second-harmonic generation (SHG) of 10.2 μm radiation have been submitted to up to 1.3 W single-mode continuous-wave (CW) output of a CO2 laser focused to a decreasing beam radius w0. For a power density exceeding 1.6 kW/cm2, corresponding to a focusing parameter l= lc zR far under the theoretical optimum one, the second-harmonic (SH) generated power starts to saturate due to thermal effects. The study of the conversion efficiency versus the focusing parameter for the walkoff-compensated twin device reveals that this two-crystal device is more efficient than would be a single crystal of length 2lc, despite the small walkoff angle in this material.

AB - Two twin AgGaSe2 crystals (lc=20 mm) cut for the second-harmonic generation (SHG) of 10.2 μm radiation have been submitted to up to 1.3 W single-mode continuous-wave (CW) output of a CO2 laser focused to a decreasing beam radius w0. For a power density exceeding 1.6 kW/cm2, corresponding to a focusing parameter l= lc zR far under the theoretical optimum one, the second-harmonic (SH) generated power starts to saturate due to thermal effects. The study of the conversion efficiency versus the focusing parameter for the walkoff-compensated twin device reveals that this two-crystal device is more efficient than would be a single crystal of length 2lc, despite the small walkoff angle in this material.

UR - http://www.scopus.com/inward/record.url?scp=0029375629&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029375629&partnerID=8YFLogxK

U2 - 10.1016/0030-4018(95)00341-5

DO - 10.1016/0030-4018(95)00341-5

M3 - Article

VL - 119

SP - 320

EP - 326

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

IS - 3-4

ER -