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US 9,436,060 B2Granted
Islands-in-sea type photorefractive polymer composite, and photorefractive device and optical device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsChil-sung Choi, Kyoung-seok Pyun
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Abstract
Provided are an islands-in-sea type photorefractive polymer composite, and a photorefractive device and an optical device including the same. The islands-in-sea type photorefractive polymer composite includes at least a photoconductive polymer matrix, a nonlinear optical chromophore, and a plasticizer, as a sea component, and includes at least a photocharge generator as an island component.
Claims13
An islands-in-sea type photorefractive polymer composite comprising:
- a sea component comprising a photoconductive polymer matrix, a nonlinear optical chromophore, and a plasticizer;
- and
- an island component comprising a photocharge generator;
- wherein an average particle diameter of the island component is in a range of about 0.5 μm to about 50 μm;
- wherein the photocharge generator is configured to be separately agglomerated from the photoconductive polymer matrix to form the island component when the photocharge generator is drive after being dissolved in a solvent with the photoconductive polymer matrix;
- wherein, when an internal electric field is present in the islands-in-sea type photorefractive polymer composite, an amount of electrons in the island component is larger than an amount of electrons in the sea component;
- and
- wherein the islands-in-sea type photorefractive polymer composite transmits substantially all incident light when an internal electric field is absent, and the islands-in-sea type photorefractive polymer composite exhibits a beam fanning effect when an internal electric field is present.
5 more elements
A photorefractive device comprising:
- a first electrode;
- a second electrode;
- and
- an islands-in-sea type photorefractive polymer composite disposed between the first electrode and the second electrode, the islands-in-sea type photorefractive polymer composite comprising:
- a sea component comprising a photoconductive polymer matrix, a nonlinear optical chromophore, and a plasticizer;
- and
- an island component comprising a photocharge generator;
- wherein an average particle diameter of the island component is in a range of about 0.5 μm to about 50 μm;
- wherein the photocharge generator is configured to be separately agglomerated from the photoconductive polymer matrix to form the island component when the photocharge generator is drive after being dissolved in a solvent with the photoconductive polymer matrix;
- wherein, when an internal electric field is present in the islands-in-sea type photorefractive polymer composite, an amount of electrons in the island component is larger than an amount of electrons in the sea component;
- and
- wherein the islands-in-sea type photorefractive polymer composite transmits substantially all incident light when an internal electric field is absent, and the islands-in-sea type photorefractive polymer composite exhibits a beam fanning effect when an internal electric field is present.
9 more elements
An optical device comprising an islands-in-sea type photorefractive polymer composite comprising:
- a sea component comprising a photoconductive polymer matrix, a nonlinear optical chromophore, and a plasticizer;
- and
- an island component comprising a photocharge generator;
- wherein an average particle diameter of the island component is in a range of about 0.5 μm to about 50 μm;
- wherein the photocharge generator is configured to be separately agglomerated from the photoconductive polymer matrix to form the island component when the photocharge generator is drive after being dissolved in a solvent with the photoconductive polymer matrix;
- wherein, when an internal electric field is present in the islands-in-sea type photorefractive polymer composite, an amount of electrons in the island component is larger than an amount of electrons in the sea component;
- and
- wherein the islands-in-sea type photorefractive polymer composite transmits substantially all incident light when an internal electric field is absent, and the islands-in-sea type photorefractive polymer composite exhibits a beam fanning effect when an internal electric field is present.
5 more elements
An optical beam splitter comprising:
- an islands-in-sea type photorefractive polymer composite comprising:
- a sea component comprising:
- a photoconductive polymer matrix, a nonlinear optical chromophore, and a plasticizer;
- and
- a plurality of island components each comprising a photocharge generator;
- wherein an average particle diameter of the island component is in a range of about 0.5 μm to about 50 μm;
- wherein the photocharge generator is configured to be separately agglomerated from the photoconductive polymer matrix to form the island component when the photocharge generator is drive after being dissolved in a solvent with the photoconductive polymer matrix;
- wherein, when an internal electric field is present in the islands-in-sea type photorefractive polymer composite, an amount of electrons in the island component is larger than an amount of electrons in the sea component;
- and
- wherein the islands-in-sea type photorefractive polymer composite transmits substantially all incident light when an internal electric field is absent, and the islands-in-sea type photorefractive polymer composite exhibits a beam fanning effect when an internal electric field is present.
7 more elements
Dependencies are inferred from the claim text.