Rate-equation model of light-induced heating in LiNbO 3 -type crystals under high-average-power laser irradiation
Rate-equation model of light-induced heating in LiNbO 3 -type crystals under high-average-power laser irradiation
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DOI：
10.1364/ome.6.000396
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发表时间：
2015-07
影响因子：
2.8
通讯作者：
S. Kato;S. Kurimura;N. Mio
中科院分区：
文献类型：
--
作者：
S. Kato;S. Kurimura;N. Mio
研究了高平均功率激光作用下绿色倍频LiNbO 3型晶体的光致加热。提出了一个基于极化子动力学的速率方程，并通过再现实验结果确定了速率方程的重要参数。利用速率方程计算了光生热和灾变击穿阈值强度。极化子的积累效应导致晶体灾变击穿阈值强度的降低。
Light-induced heating under high-average-power laser is investigated in LiNbO3-type crystals in green second-harmonic generation. A rate-equation based on the kinetics of polarons is proposed and important parameters of the rate-equation are determined by reproducing experimental results. Light-induced heat and threshold intensity of catastrophic breakdown are evaluated using the rate-equation. The accumulation effect of polarons causes the decrease of threshold intensity of catastrophic breakdown of crystals.