▎ 摘 要
NOVELTY - The optical-limiter comprises chemically functionalized graphene spaced apart as single sheets in a transparent liquid cell or solid thin film. The chemical functionalization comprises both substoichiometric oxidation and attachment of surface modifier groups. The polymer or sol-gel materials such as silica titania and silsequioxanes contains heavy-atom, electron withdrawing or electron donating group. The solid thin film is formed by chemically functionalized graphenes that are spaced apart by greater than a few molecular diameter. USE - The optical-limiter is useful in a device such as an anti-glare treated device and a sensor protected with pulse shaping (claimed). ADVANTAGE - The optical-limiter exhibits less transmittance and increased performance, and protects the optical and focal-plane array sensors from irreversible damage by intense pulses thus enhancing lifespan of the sensor. DETAILED DESCRIPTION - The optical-limiter comprises chemically functionalized graphene spaced apart as single sheets in a transparent liquid cell or solid thin film. The chemical functionalization comprises both substoichiometric oxidation and attachment of surface modifier groups. The polymer or sol-gel materials such as silica titania and silsequioxanes contains heavy-atom, electron withdrawing or electron donating group. The solid thin film is formed by chemically functionalized graphenes that are spaced apart by greater than a few molecular diameter. An optical-limiting mechanism occurs by excited state absorption. Onset of the nonlinear optical limiting effect in the thin film or liquid cell is less than10mJ/cm2 when the linear transmittance is 50-90%. An INDEPENDENT CLAIM is included for a method of fabricating an optical response material.