Active formation of an antiguide structure in a photorefractive polymer for enhanced second-harmonic generation
Optics Letters, Vol. 26, Issue 13, pp. 995-997 (2001)
http://dx.doi.org/10.1364/OL.26.000995
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Abstract
An antiguide structure for enhanced second-harmonic generation was actively constructed in a photorefractive polymer by use of a pump beam. Irradiation of a pump beam enhanced second-harmonic power, and blocking the pump returned the power to the initial value. The electric-field dependence of the degree of enhancement of the second-harmonic power confirmed that the antiguide structure was constructed through a photorefractive-index change in the medium. The photorefractive-index change accompanied molecular reorientation induced by the pump-generated space charges. The thermo-optic effect on formation of the structure is also discussed.
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.5330) Nonlinear optics : Photorefractive optics
(190.5940) Nonlinear optics : Self-action effects
(250.5460) Optoelectronics : Polymer waveguides
Citation
Takafumi Sassa, Tatsuo Wada, Hiroyuki Sasabe, Masaaki Yokoyama, and Shinsuke Umegaki, "Active formation of an antiguide structure in a photorefractive polymer for enhanced second-harmonic generation," Opt. Lett. 26, 995-997 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-13-995
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