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Photorefractive Polymers with Non‐Destructive Readout
Author(s) -
Kippelen B.,
Blanche P.A.,
Schülzgen A.,
FuentesHernandez C.,
RamosOrtiz G.,
Wang J.F.,
Peyghambarian N.,
Marder S.R.,
Leclercq A.,
Beljonne D.,
Brédas J.L.
Publication year - 2002
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/1616-3028(20020916)12:9<615::aid-adfm615>3.0.co;2-o
Subject(s) - photorefractive effect , holography , materials science , optics , optoelectronics , absorption (acoustics) , wavelength , laser , polymer , physics , composite material
Photorefractive polymers are suitable for real‐time holographic applications. Since the recording and readout of a hologram is carried out with laser beams with the same wavelength, the readout process partially erases the stored information, a problem common to all current photorefractive materials and referred to as destructive readout. In this paper we describe photorefractive polymers that are sensitized by two‐photon absorption. Holographic recording is achieved with high‐intensity writing beams and readout using low light intensity, but high power beams. Using this nonlinear recording scheme, non‐destructive readout was demonstrated.