Detailed characterization of pump-induced refractive index changes observed in Nd:YVO_4, Nd:GdVO_4 and Nd:KGW | Zendy

Rémi Soulard | Zendy; A.P. Zinoviev | Zendy; JeanLouis Doualan | Zendy; Е. В. Ивакин | Zendy; O.L. Antipov | Zendy; R. Moncorgé | Zendy

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Detailed characterization of pump-induced refractive index changes observed in Nd:YVO_4, Nd:GdVO_4 and Nd:KGW

Author(s) -

Rémi Soulard,

A.P. Zinoviev,

JeanLouis Doualan,

Е. В. Ивакин,

O.L. Antipov,

R. Moncorgé

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.001553

Subject(s) - materials science , refractive index , optics , laser , grating , interferometry , diffraction grating , femtosecond , diffraction , optoelectronics , physics

The refractive index changes which can be induced in the Nd:YVO(4), Nd:GdVO(4) and Nd:KGW high gain laser crystals, when their Nd(3+) laser active ions are pumped from their ground- to excited- energy levels, have been carefully measured and characterized. By using two complementary optical techniques based on pump-probe interferometry and transient diffraction grating, the electronic and thermal contributions to the observed refractive index variations have been accurately determined and successfully exploited to derive various parameters such as polarizability changes, thermo-optic coefficients and thermal diffusivities.

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