Non-Linear Ellipsometer for the Measurement of Coherent and Incoherent Polarization Change in Optically Non-Linear Medium
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概要
- 論文の詳細を見る
A microcomputer-aided ellipsometer with a spinning quarter-wave plate and an analyzer was developed for the simultaneous determination of all the Stokes parameters. This system is quite good for measurements of a photo-induced non-linear polarization change, where a low-repetition pulsed laser is used as the light source. We applied this system for measurements of the photo-induced optical activity associated with the two-photon formation of Γ_1 excitonic molecules in CuCl. The coherent polarization change of a linearly polarized probe beam due to two-photon dispersion was clearly observed under irradiation by a circularly polarized excitation beam of 0.5 MW/cm^2, and a strong depolarization was found near the two-photon resonance. We ascribe the origin of this depolarization to a random modulation caused by an intensity fluctuation in the pump beam.
- 社団法人応用物理学会の論文
- 1986-09-20
著者
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NAGASAWA Nobukata
Department of Physics and Institute of Nano Science and Technology, Hong Kong University of Science
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Kuwata Makoto
Department Of Physics Faculty Of Science University Of Tokyo
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ITAGAKI Toshikazu
Department of Physics, Faculty of Science, University of Tokyo
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Itagaki Toshikazu
Department Of Physics Faculty Of Science University Of Tokyo:(present Address) Ibm Japan Yamato Labo
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NAGASAWA Nobukata
Department of Physics, Faculty of Science, University of Tokyo
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