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US 2009/0289230 A1Published application
Nonlinear Optical Applications of Nonconjugated Conductive Polymers
OwnerMrinal Thakurinventor
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OwnerMrinal Thakurinventor
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Nonconjugated conductive polymers have a ratio of double bonds to total bonds of less than ½ are used to produce compositions with unexpected non-linear optical characteristics in this invention. Large third order optical effects including quadratic electro-optic effect and two-photon absorption have been measured in nonconjugated conductive polymers after doping the polymers. Among the nonconjugated polymers are styrene-butadiene-rubber copolymer (SBR), poly(β-pinene), poly(ethylene-pyrrolediyl) derivative, polynorbornene, cis-1,4 polyisoprene and trans-1,4 polyisoprene. The enhancement of the non-linear optical effect is due to the special charge-transfer complex structure and formation of nano-optical domains. Among the doping materials are electron acceptors such as iodine and antimony pentachloride.
A method of preparing nonconjugated conductive polymers having enhanced third order optical and/or quadratic electro-optic characteristics by doping the polymer with an electron acceptor such as iodine and antimony pentachloride.
A method of modulating the waveform of a light beam by passing the beam through a doped nonconjugated polymer and applying an electric field or another light beam to the polymer.
The method of changing the refractive index of a nonconjugated polymer by doping said polymer with an electron acceptor and applying an electric field to the doped polymer.
The method of changing the refractive index of a nonconjugated polymer by doping said polymer with an electron acceptor and varying the intensity of a light beam applied to the polymer.
A nano-optical nonconjugated polymer doped with an electron acceptor.
The method of changing the absorption coefficient (two-photon absorption) of a doped nonconjugated conductive polymer by varying the intensity of an optical beam applied to the polymer.
The method of claim of 26, in which the poly(β-pinene) polymer is doped with iodine.
The method of claim of 28, in which the nonconjugated polymer is doped with iodine.
Doped nonconjugated conductive polymers having enhanced third order optical and/or quadratic electro-optic characteristics.
Dependencies are inferred from the claim text.