NONLINEAR PROCESSES IN UV OPTICAL-MATERIALS AT 248 NM

被引：29

作者：

HATA, K

WATANABE, M

WATANABE, S

机构：

[1] The Institute for Solid State Physics, The University of Tokyo, Tokyo, 106

来源：

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY | 1990年 / 50卷 / 01期

关键词：

42.55.Gp; 42.55.Rz;

D O I：

10.1007/BF00330094

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nonlinear processes in UV optical materials were investigated by using 280-fs, 248-nm pulses. Nonlinear absorption in CaF2 was confirmed to be a two-photon process by using the luminescence of self-trapped excitons, which was also used for the single shot pulse width measurement. The absorption bands due to F centers were identified in CaF2, MgF2, and LiF after several hundred shots at 100 GW/cm2. Absorption at 248 nm was considerable especially in MgF2 and LiF. Self-focusing and self-phase modulation were observed in CaF2. © 1990 Springer-Verlag.

引用

页码：55 / 59

页数：5

共 21 条

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