Enhanced photorefractive two-beam coupling in low-Tg polymeric materials with a new device structure
JOSA B, Vol. 21, Issue 6, pp. 1255-1261 (2004)
http://dx.doi.org/10.1364/JOSAB.21.001255
Acrobat PDF (246 KB)
Abstract
Large two-beam coupling gain with a low driving voltage and a small grating spacing was observed by use of a novel device structure in a photorefractive polymer with a low glass-transition temperature (Tg). A net gain (Γ−α)L close to 1 was observed for an external electric field of ∼40 V/μm and a grating spacing of 0.42 μm. The enhanced coupling strength was the result of optimized parameters and improved, effective electro-optical coefficient, phase shift, space-charge field, and effective interaction length compared with those of a conventional device structure. Moreover, mechanism for this enhancement of coupling strength was found to be applicable to typical efficient low-Tg polymeric materials.
© 2004 Optical Society of America
OCIS Codes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(190.7070) Nonlinear optics : Two-wave mixing
Citation
Takafumi Sassa, Tsuyoshi Muto, and Tatsuo Wada, "Enhanced photorefractive two-beam coupling in low-Tg polymeric materials with a new device structure," J. Opt. Soc. Am. B 21, 1255-1261 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-6-1255
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Influence of nonlinearities on two-wave mixing in photorefractive InP:Fe crystals with a moving grating (JOSAB)
- Photorefractive grating formulation with any light modulation and excitation: exact and approximate steady-state analytic solutions (JOSAB)
- Difference-frequency terahertz-wave generation from 4-dimethylamino-N-methyl-4-stilbazolium-tosylate by use of an electronically tuned Ti:sapphire laser. (OL)
- Surface waves in photorefractive polymer films (OE)
- Formation speed and formation mechanism of self-written surface wave-based waveguides in photorefractive polymers (OME)
Related Conference Papers
- Two-photon Absorption Studies of Polymethine and Squaraine Dyes with Analogical Structures
- Progress in electro-optic polymers for broadband terahertz systems
- Progress in electro-optic polymers for broadband terahertz systems
- Second-harmonic generation in nonpolar chiral materials: relationship between molecular and macroscopic properties
- Second-harmonic generation in nonpolar chiral materials: relationship between molecular and macroscopic properties
- A New Device Geometry for Highly EfficientPhotorefractive Performances in Polymeric Materials
- Recent Advances in Photorefractive Organic Materials
OSA is a member of 