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Optics Letters

Optics Letters


  • Vol. 26, Iss. 13 — Jul. 1, 2001
  • pp: 995–997

Active formation of an antiguide structure in a photorefractive polymer for enhanced second-harmonic generation

Takafumi Sassa, Tatsuo Wada, Hiroyuki Sasabe, Masaaki Yokoyama, and Shinsuke Umegaki  »View Author Affiliations

Optics Letters, Vol. 26, Issue 13, pp. 995-997 (2001)

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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

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

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)

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