20 January 1994 Photocrosslinkable conducting polymers as nonlinear optical materials
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Abstract
A novel solution processable, electrically conducting and photocrosslinkable second order nonlinear optical (NLO) polymer was synthesized and investigated. Cinnamoylated thiophene derivative -- poly [3-octylthiophene-co-4-(N-3 thenyl) amino 2-nitro phenol] shows second order NLO activity upon poling. This conducting polymer, when doped with an NLO chromophore, 3-cinnamoyloxy-4-[4-(N,N-diethylamino)-2-cinnamoyloxy phenylazo] nitrobenzene and poled, exhibits greatly enhanced second order optical nonlinearity. The second order NLO coefficient -- d33 of the dye doped polymer was measured to be 18.6 pm/V at 1.064 micrometers and 3.3 pm/V at 1.542 micrometers by the second harmonic generation technique. The NLO properties of the poled and photocrosslinked polymer samples are stable at room temperature. The combination of conductivity and optical nonlinearity in this type of polymeric materials may lead to new photovoltaic and photorefractive applications.
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Lian Li, Lian Li, Kethinni G. Chittibabu, Kethinni G. Chittibabu, Jayant Kumar, Jayant Kumar, Sukant K. Tripathy, Sukant K. Tripathy, } "Photocrosslinkable conducting polymers as nonlinear optical materials", Proc. SPIE 2042, Photopolymers and Applications in Holography, Optical Data Storage, Optical Sensors, and Interconnects, (20 January 1994); doi: 10.1117/12.166316; https://doi.org/10.1117/12.166316
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