Optical: systems and elements – Optical computing without diffraction – Logic gate
Patent
1996-06-05
1998-05-26
Hellner, Mark
Optical: systems and elements
Optical computing without diffraction
Logic gate
359241, 359244, G02F 300, G02F 103
Patent
active
057575258
ABSTRACT:
All-optical devices, e.g., optical switches and modulators, and logic gates such as optical AND and OR gates, that include photochromic materials having first and second stable states, such as bacteriorhodopsin, organic fulgides, azo and fluorescent dyes, phycobiliproteins, rhodopsins, and their analogs, irradiated in a four-wave mixing geometry, are described. These devices can be used in a wide variety of systems, such as, e.g., optical signal processors and optical computers.
REFERENCES:
patent: 4471470 (1984-09-01), Swainson et al.
patent: 4801670 (1989-01-01), DeMartino et al.
patent: 4930873 (1990-06-01), Hunter
patent: 5228001 (1993-07-01), Birge et al.
patent: 5253198 (1993-10-01), Birge et al.
patent: 5290699 (1994-03-01), Oesterhelt et al.
patent: 5502585 (1996-03-01), Qian
Aranda et al., "Nonlinear Optical Interactions in Bacteriorhodopsin Using Z-Scan," Optical Review, 2:(3)204-206, 1995.
Aranda et al., "All-optical light modulation in bacteriorhodopsin films," Appl. Phys. Lett., 67:(5)599-601, 1995.
Birge et al., "Nonlinear Optical Properties of Bacteriorhodopsin: Assignment of the Third-order Polarizability Based on Two-Photon Absorption Spectroscopy," SPIE Biomolecular Spectroscopy II, 1432:129-140, 1991.
Birge, "Protein-Based Optical Computing and Memories," Computer, 1100:56-67, Nov. 1992.
Birge, "Protein-Based Computers," Scientific American, pp. 90-95, Mar 1995.
Chen et al., "Bacteriorhodopsin oriented in polyvinyl alcohol films as an erasable optical storage medium," Applied Optics, 30:(35)5188-5196, 1991.
Gluckstad et al., "Spontaneous pattern formation in a thin film of bacteriorhodopsin with mixed absorptive-dispersive nonlinearity," Optic Letters, 20:(6)551-553, 1995.
Hampp et al., "Mutated Bacteriorhodopsins: Comptetive Materials for Optical Information Processing?", MRS Bulletin, 17:(11)56-60, 1992.
Haronian et al., "Microfabricating bacteriorhodopsin films for imaging and computing," Appl. Phys. Lett., 61:(18)2237-2239, 1992.
Hendrickx et al., "The Bacteriorhodopsin Chromophore Retinal and Derivatives: An Experimental and Theoretical Investigation of the Second-Order Optical Properties," J. Am. Chem. Soc., 117:3547-3555, 1995.
Hong, "The Bacteriorhodopsin Model Membrane System as a Prototype Molecular Computing Element," BioSystems, 19:223-236, 1986.
Kirkby et al., "Optical Nonlinearity and Resonant Bistability in Organic Photochromic Thin Films," Optical Bistability III, Proceedings of the Topical Meeting, Tucson, AZ, Springer-Verlag, 1985.
Korchemskaya et al., "Spatial polarization wavefront reversal under conditions of four-wave mixing in biochrome films," Sov. J. Quantum Electron., 17:(4)450-454, 1987.
Korchemskaya et al., "Photoinduced anisotropy, four-wave mixing and phase conjugation in materials based on bacteriorhodopsin," SPIE High-Speed Phenomena in Photonic Materials and Optical Bistability, 1280:308-313, 1990.
Nesset et al., "All-optical and gate operating on 10Gbit/s signals at the same wavelength using four-wave mixing in a semiconductor laser amplifier," Electronics Letters, 31:(11)896-897, 1995.
Oesterhelt et al., "Bacteriorhodopsin: a biological material for information processing," Quart. Review of Biophysics, 24:(4)425-478, 1991.
Rao et al., "Mirrorless all-optical bistability in bacteriorhodopsin," Appl. Phys. Lett. 63:(11)1489-1491, 1993.
Song et al., "Optical limiting by chemically enhanced bacteriorhodopsin films," Optics Letters, 18:(10)775-777, 1993.
Taranenko et al., "Optical bistability and signed competition in active cavity with photochromic non-linearity of bacteriorhodopsin," SPIE Optical Memory and Neural Networks, 1621:169-179, 1991.
Thoma et al., "Bacteriorhodopsin films as spatial light modulators for nonlinear-optical filtering," Optics Letters, 16:(9)651-653, 1991.
Thoma et al., "Real-time holographic correlation of two video signals by using bacteriorhodopsin films," Optics Letters, 17:(16)(1158-1160, 1992.
Vsevolodov et al., "Actual Possibilities of Bacteriorhodopsin Application in Optoelectronics," Institute of Biological Physics, USSR Academy of
Werner et al., "Saturable absorption, wave mixing, and phase conjugation with bacteriorhodopsin," Optics Letters, 15:(20)1117-1119, 1990.
Werner et al., "Strong self-defocusing effect and four-wave mixing in bacteriorhodopsin films," Optics Letters, 17:(4)241-243, 1992.
Akkara Joseph A.
Aranda Francisco J.
Chen Zhongping
Rao Desai Narayana
Rao Devulapalli V. G. L. N.
Hellner Mark
University of Massachusetts
LandOfFree
All-optical devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with All-optical devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and All-optical devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1969067