Photorefractive polymers sensitized by two-photon absorption
Optics Letters, Vol. 27, Issue 1, pp. 19-21 (2002)
http://dx.doi.org/10.1364/OL.27.000019
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Abstract
We demonstrate the recording of holograms and their nondestructive readout in a photorefractive polymer, using two-photon absorption. Sensitivity is provided by the excitation of the electroactive chromophore with femtosecond pulses, followed by charge injection into the photoconducting poly(N -vinylcarbazole) matrix. The holograms can be fully erased with a pulsed laser source but are insensitive to cw laser beams with the same wavelength. Studies of the field and intensity dependence of the diffraction efficiency indicate that the holograms are formed through the photorefractive effect.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(090.2890) Holography : Holographic optical elements
(160.4890) Materials : Organic materials
(160.5140) Materials : Photoconductive materials
(160.5320) Materials : Photorefractive materials
(160.5470) Materials : Polymers
(190.4180) Nonlinear optics : Multiphoton processes
Citation
P. A. Blanche, B. Kippelen, A. Schülzgen, C. Fuentes-Hernandez, G. Ramos-Ortiz, J. F. Wang, E. Hendrickx, N. Peyghambarian, and S. R. Marder, "Photorefractive polymers sensitized by two-photon absorption," Opt. Lett. 27, 19-21 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-1-19
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