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Proceedings Paper

Determination of spectroscopic parameters of non-linear absorbers by bleaching-effect dynamics analysis
Author(s): Z. Mierczyk
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Paper Abstract

The paper presents the results of investigations of spectroscopic parameters of three saturable absorbers utilized in 1.06 ptm laser systems: foil with BDN dye, LiF with colour centers and YAG:Cr4+. The kinetics of absorber bleaching can be described by a two level quantum model. The nonsaturable component of the absorption coefficient, absorption cross-section, active centers concentration, excited state lifetime and energy consumed for bleaching effect have been estimated. Investigations of YAG:Cr4+ spectroscopic properties, and measurements of absorption and luminescence bands, allow the estimation of chromium ion concentration at particular charging state and positions in YAG crystalline structure and allow also to determine their mutual relations and influence of these relations on the non-linear properties of absorber.

Paper Details

Date Published: 1 September 1996
PDF: 2 pages
Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778B9 (1 September 1996); doi: 10.1117/12.2316094
Show Author Affiliations
Z. Mierczyk, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 2778:
17th Congress of the International Commission for Optics: Optics for Science and New Technology
Joon-Sung Chang; Jai-Hyung Lee; ChangHee Nam, Editor(s)

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