標題: Carrier-envelope phase measurement by all-optical poling with a polar side-chain polymer
作者: Okamura, Kotaro
Kobayashi, Takayoshi
電子物理學系
Department of Electrophysics
關鍵字: Ultrafast;Phase retrieval;Nonlinear optics
公開日期: 1-Dec-2008
摘要: Dependence of all-optical poling efficiency on carrier-envelope phase (CEP) could be measured using photoisomerization of dye molecules which are covalently bound to a polymer main chain and have large difference in static dipole moment between the ground state and excited state. Increased chromophore density leads to an order of magnitude reduction in signal-detection time from a dye doped polymer. Analysis of all-optical poling experiments with CEP changes clearly showed the presence of polarization restoring force to zero polarization. This enables resetting of SH activity in the all-optical poling process to be used for fast response loop of CEP stabilization. Phenomenological model could explain well the difference in the growth-and-decay dynamics of poling between sample of dye doped in polymer studied previously and that grafted to a polymer main chain used in the present paper. (C) 2008 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.optcom.2008.08.026
http://hdl.handle.net/11536/8091
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2008.08.026
期刊: OPTICS COMMUNICATIONS
Volume: 281
Issue: 23
起始頁: 5870
結束頁: 5873
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