Mode-mismatched dual-beam method to evaluate thermal and electronic laser-induced lensing effects in Cr3+- and Yb3+-doped crystals.
Opt Lett
; 48(24): 6541-6544, 2023 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-38099794
ABSTRACT
We report on a mode-mismatched thermal lens experiment performed to quantitatively evaluate thermal and electronic laser-induced lensing effects in ion-doped crystals Cr3+LiSAF, Yb3+KYW, and Yb3+YAG. The large diameter of the probe beam resulted in a slow thermal effect (â¼dozens of milliseconds) two orders of magnitude larger than the electronic one, improving the discrimination of both competitive effects. All thermal and electronic parameters are obtained from transient signals modeled by an analytical equation, valid for small phase shifts in the absence of upconversion effects.
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01-internacional
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MEDLINE
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En
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Opt Lett
Ano de publicação:
2023
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Article