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AssigneesInstitut “Jozef Stefan”, Center Odlicnosti Nanoznanosti In Nanotehnologije - Co Nanocenter
InventorsLjupka Stojcevska, Tomaz Mertelj, Igor Vaskivskyi, Dragan Mihailovic
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The invention refers to an ultrafast quench based nonvolatile bistable device which consists of an active material on a passive or active substrate which changes its physical properties, after exposure to a sufficiently temporally short external perturbation causing an ultrafast quench. The perturbation can be from an external ultrashort laser pulse or ultrafast electrical pulse from an electrooptic device or any other generator of ultrashort pulses. This change of the materials properties can be detected as a change of optical properties or electrical resistance. The dielectric properties can be reverted back to their original state by the application of a heat pulse applied by an electrical heater within the device or an external laser.
An ultrafast quench based nonvolatile bistable device which shows a change of reflectivity, transmittance or electrical resistance of a solid state material as a result of the transition from state A to state B, where state A is in a stable thermodynamic state of the material and state B is a result of a rapid quench through a phase transition and state B cannot be reached by slow thermal processing.
Dependencies are inferred from the claim text.