Second-harmonic generation of femtosecond high-intensity Ti:sapphire laser pulses

被引：24

作者：

Mori, K ^{[1
]}

Tamaki, Y ^{[1
]}

Obara, M ^{[1
]}

Midorikawa, K ^{[1
]}

机构：

[1] RIKEN, Inst Phys & Chem Res, Laser Technol Lab, Wako, Saitama 35101, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 1998年 / 83卷 / 06期

关键词：

D O I：

10.1063/1.367078

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The second-harmonic generation (SHG) of ultrashort Ti:sapphire laser pulses in potassium dihydrogen phosphate crystal in type-I phase-matching geometry has been investigated theoretically, including the effects of cubic nonlinearity. It is found that the phase mismatch due to the broad bandwidth associated with the short pulse width limits the maximum conversion efficiency to less than 60%, and the temporal shape of the converted pulse has an intensity modulation at an incident intensity of 100 GW/cm(2) for a 100 fs pulse. In order to increase the energy conversion efficiency and improve the temporal pulse shape, a new SHG geometry using two antiparallel tilted crystals is discussed. (C) 1998 American Institute of Physics.

引用

页码：2915 / 2919

页数：5

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