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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/23935
Title: | 光波助變放大器與半導體脈衝塑形現象之飛秒非線性光學研究 Femtosecond nonlinear optics in optical parametric amplification and pulse-shaping phenomena of semiconductors |
Authors: | Jiun-Cheng Wang 王俊程 |
Advisor: | 孫啟光(Chi-Kuang Sun) |
Keyword: | 非線性光學,飛秒,光波助變放大器,半導體, nonlinear optics,fentosecond,optical parametric amplifier,semiconductor, |
Publication Year : | 2006 |
Degree: | 博士 |
Abstract: | This thesis presents investigations of nonlinear optical interaction between femtoseond laser pulses and materials. The first part focuses on femtosecond optical parametric amplification. A high power femtosecond optical parametric amplifier is demonstrated. A complete simulation approach is developed and demonstrated to successfully describe the output characteristics of the real optical parametric amplifier. This simulation approach is used as an analytic tool to investigate the dynamical interaction between material dispersion and three-wave nonlinear coupling during the amplification process. Several critical issues are addressed. A designed procedure of femtosecond optical parametric amplifiers is proposed. The second part focuses on the pulse-shaping phenomena of semiconductors. A high precision femtosecond laser pulse measurement technique is demonstrated. It is frequency-resolved optical gating based on two-beam coupling. Its precision and accuracy is examined before applying it to subsequent experiments. Pulse-shaping effects of gallium arsenide and semiconductor saturable absorber mirror have been successfully unveiled. Dielectric functions modified by photoexcited carriers are used to interpret experimental results. Observed pulse-shaping effects of semiconductor saturable absorber mirror are compared to theoretical prediction. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/23935 |
Fulltext Rights: | 未授權 |
Appears in Collections: | 光電工程學研究所 |
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File | Size | Format | |
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ntu-95-1.pdf Restricted Access | 6.49 MB | Adobe PDF |
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