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

Title: Multiwavelength UV-IR laser system based on a-cut Nd : YVO{sub 4} - YVO{sub 4} composite vanadate crystals with {sigma}-polarised radiation

Abstract

Lasing properties of a-cut Nd : YVO{sub 4} - YVO{sub 4} composite vanadate crystals are experimentally studied for the {pi} and {sigma} polarisations of radiation at the {sup 4}F{sub 3/2} - {sup 4}I{sub 11/2} transition. Polarisation dependences of the lasing characteristics of passively Q-switched Nd : YVO{sub 4} - YVO{sub 4} lasers with Cr{sup 4+} : YAG Q-switches are investigated. It is shown that the laser operates with the highest efficiency in the case of the {sigma}-polarised radiation (minimum pulse duration shorter than 1.5 ns, maximum peak power up to 25 kW, maximum peak energy about 35 {mu}J at a slope efficiency up to 32 %). Frequency conversion to the second and fourth harmonics is demonstrated. Based on this study, a multiwavelength laser with bactericidal and therapeutic effects is developed for treatment of a wide spectrum of diseases.

Authors:
 [1]
  1. A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22043947
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 42; Journal Issue: 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHROMIUM IONS; CONVERSION; CRYSTALS; EFFICIENCY; HARMONICS; NEODYMIUM LASERS; POLARIZATION; PULSES; SPECTRA; SWITCHES; VANADATES; YTTRIUM COMPOUNDS

Citation Formats

Sirotkin, A A. Multiwavelength UV-IR laser system based on a-cut Nd : YVO{sub 4} - YVO{sub 4} composite vanadate crystals with {sigma}-polarised radiation. United States: N. p., 2012. Web. doi:10.1070/QE2012V042N06ABEH014784.
Sirotkin, A A. Multiwavelength UV-IR laser system based on a-cut Nd : YVO{sub 4} - YVO{sub 4} composite vanadate crystals with {sigma}-polarised radiation. United States. doi:10.1070/QE2012V042N06ABEH014784.
Sirotkin, A A. Sat . "Multiwavelength UV-IR laser system based on a-cut Nd : YVO{sub 4} - YVO{sub 4} composite vanadate crystals with {sigma}-polarised radiation". United States. doi:10.1070/QE2012V042N06ABEH014784.
@article{osti_22043947,
title = {Multiwavelength UV-IR laser system based on a-cut Nd : YVO{sub 4} - YVO{sub 4} composite vanadate crystals with {sigma}-polarised radiation},
author = {Sirotkin, A A},
abstractNote = {Lasing properties of a-cut Nd : YVO{sub 4} - YVO{sub 4} composite vanadate crystals are experimentally studied for the {pi} and {sigma} polarisations of radiation at the {sup 4}F{sub 3/2} - {sup 4}I{sub 11/2} transition. Polarisation dependences of the lasing characteristics of passively Q-switched Nd : YVO{sub 4} - YVO{sub 4} lasers with Cr{sup 4+} : YAG Q-switches are investigated. It is shown that the laser operates with the highest efficiency in the case of the {sigma}-polarised radiation (minimum pulse duration shorter than 1.5 ns, maximum peak power up to 25 kW, maximum peak energy about 35 {mu}J at a slope efficiency up to 32 %). Frequency conversion to the second and fourth harmonics is demonstrated. Based on this study, a multiwavelength laser with bactericidal and therapeutic effects is developed for treatment of a wide spectrum of diseases.},
doi = {10.1070/QE2012V042N06ABEH014784},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 6,
volume = 42,
place = {United States},
year = {2012},
month = {6}
}