Polarisation characteristics of two-photon absorption in LIF:F2- crystal at wavelength 1.06 um

T. T. Basiev

doi:10.1117/12.2316080

1 September 1996 Polarisation characteristics of two-photon absorption in LIF:F₂⁻ crystal at wavelength 1.06 μm

T. T. Basiev

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 2778AV (1996) https://doi.org/10.1117/12.2316080
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

The irreversible bleaching of F₂⁻ color centers (CC) in a LiF crystal under influence of powerful IR radiation with wavelength 1.06 μm has been observed earlier [1]. It has been shown that F₂⁻ CC bleaching is due to two-photon absorption from the excited state and results in the formation of a stable dichroic spatial band in the crystal. It has been shown [2-4] that F₂⁻ CC irreversible bleaching is the reason of both spectral and polarisation "collapses" in Nd lasers with LiF:F₂⁻ crystals as passive Q-switches.

Citation Download Citation

T. T. Basiev "Polarisation characteristics of two-photon absorption in LIF:F₂⁻ crystal at wavelength 1.06 μm", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778AV (1 September 1996); https://doi.org/10.1117/12.2316080

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