Nonlinear refraction in CS2

被引：153

作者：

Ganeev, RA

Ryasnyansky, AI

Baba, M

Suzuki, M

Ishizawa, N

Turu, M

Sakakibara, S

Kuroda, H

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[2] NPO Akadempribor, Tashkent 700125, Uzbekistan

[3] Samarkand State Univ, Samarkand 703004, Uzbekistan

[4] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2004年 / 78卷 / 3-4期

关键词：

D O I：

10.1007/s00340-003-1389-y

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The nonlinear refractive index (gamma) of CS2 was measured using the Z-scan technique and laser radiation of various (femto-, pico-, and nano-second) pulse durations. We observed the growth of gamma with the increase of the pulse duration (from (3+/-0.6)x10(-15) cm(2) W-1 at 110 fs to (4+/-2)x10(-14) cm(2) W-1 at 75 ns) due to the additional influence of the molecular reorientational Kerr effect in the case of longer (picosecond and nanosecond) pulses. Acoustic wave induced negative nonlinear refraction was observed using wavefront analysis. We analyzed the simultaneous influence of both electronic and molecular processes leading to the positive nonlinear refraction and acoustic processes leading to the negative nonlinear refraction in carbon disulfide. Variations of the refractive index due to the thermal effect at high pulse repetition rates were also investigated.

引用

收藏

页码：433 / 438

页数：6

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