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US 2009/0052009 A1Published application
Non-linear optical device sensitive to green laser
AssigneeNitto Denko Corporation
InventorsMichiharu Yamamoto, Peng Wang
Life of this patent
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Abstract
A non-linear optical device comprising a polymer configured to be photorefractive upon irradiation by a green laser. The polymer comprises a repeating unit including a moiety selected from the group consisting of the structures (M-1), (M-2) and (M-3), as defined herein.
Claims24
A non-linear optical device comprising a polymer configured to be photorefractive upon irradiation by a green laser, wherein the polymer comprises a repeating unit that includes a moiety selected from the group consisting of the following formulas:
- wherein each Q in (M-1), (M-2), and (M-3) independently represents an unsubstituted or substituted alkylene group;
- and wherein Ra1-Ra8, Rb1-Rb27 and Rc1-Rc14 in (M-1), (M-2), and (M-3) are each independently selected from the group consisting of hydrogen, C1-C10 alkyl, C4-C10 aryl and C4-C10 heteroaryl.
A method for modulating light, comprising the steps of:
- providing a photorefractive composition comprising a polymer, wherein the polymer comprises a repeating unit that includes a moiety selected from the group consisting of the following structures:
- wherein each Q in (M-1), (M-2), and (M-3) independently represents an unsubstituted or substituted alkylene group;
- wherein Ra1-Ra8, Rb1-Rb27 and Rc1-Rc14 in (M-1), (M-2), and (M-3) are each independently selected from the group consisting of hydrogen, C1-C10 alkyl, C4-C10 aryl and C4-C10 heteroaryl;
- and
- irradiating the photorefractive composition with a green laser to thereby modulate a photorefractive property of the polymer.
2 more elements
Dependencies are inferred from the claim text.