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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.
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页码：55 / 59
页数：5
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