Signal processing by optically manipulating polaritons
November 25, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesOptical quantum interference device/optical computer and method of modulating light using same Examination of physical properties of thin films Time-gated imaging through dense-scattering materials using stimulated Raman amplification Time gated imaging through scattering material using polarization and stimulated raman amplification Upconverting and time-gated two-dimensional infrared transillumination imaging Method and apparatus for terahertz imaging Method and apparatus for terahertz imaging Patent #: 5710430 InventorApplicationNo. 199745 filed on 11/25/1998US Classes:359/239, Modulator output feedback to modulator359/108, Logic gate359/243, Bistable device385/2, Electro-optic385/14INTEGRATED OPTICAL CIRCUITExaminersPrimary: Epps, GeorgiaAssistant: Spector, David N. Attorney, Agent or FirmInternational ClassesG02B 026/00G02F 001/01 G02F 003/00 G02F 001/03 G02F 001/035 AbstractThe invention features methods and systems for processing signals by optically manipulating polaritons. In one embodiment, the signal processing method includes: converting a plurality of spatially separated input signals into polaritons that propagate in a signal processing material; optically manipulating the polaritons at a plurality of spatially separated locations in the signal processing material; and converting the manipulated polaritons into at least one output signal. In another embodiment, the signal processing method includes: converting an input signals into a polariton that propagates in a non-conductive signal processing material; optically manipulating the polariton as it propagates in the signal processing material; and converting the manipulated polaritons into an electrical output signal at an interface between the signal processing material and a conductive path in another material.Other References
Field of SearchOPTICAL COMPUTING WITHOUT DIFFRACTIONLogic gate OPTICAL MODULATOR Light wave temporal modulation (e.g., frequency, amplitude, etc.) Modulator output feedback to modulator Changing bulk optical parameter Bistable device Electro-optic Electro-optic Phase modulation type INTEGRATED OPTICAL CIRCUIT Photoconductive, light transmissive, light emissive, or light responsive device or component Device or arrangement the operation of which is modified by changing optical properties (e.g., reflectivity, transmission, etc.) of superconduc- tive material | |
