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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Carrier-envelope phase ： ウィキペディア英語版 Carrier-envelope phase The carrier-envelope phase (CEP) or carrier-envelope offset (CEO) phase is an important feature of an ultrashort laser pulse and gains significance with decreasing pulse duration, in a regime where the pulse consists of a few wavelenghts. Physical effects depending on the fall into the category of highly nonlinear optics. == CEP in the time domain == The CEP $\backslash phi\_0$ is the phase between the carrier wave and the position of the intensity envelope of the pulse (cf. figure in the time domain). In a train of multiple pulses it is usually varying due to the difference between phase and group velocity. The time, after which the phase increases resp. decreases by $2\; \backslash pi$ is called $T\_\backslash mathrm$>. Ideally, it is an integer multiple of the duration $T\_\backslash mathrm$ between two pulses and the pulses are picked at the corresponding rate to obtain a constant phase over all picked pulses. Besides this linear evolution, fluctuations which are common in conventional femtosecond laser systems usually cause a nonlinear shot-to-shot fluctuation of the CEP. This is why measuring and controlling it is very important for many applications. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Carrier-envelope phase」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.