Patents by Inventor Girsh Blumberg
Girsh Blumberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9342660Abstract: A method for detecting or identifying a chemical analyte includes measuring a nontrivial set of correlations between optical illumination wavelengths of a sample and emission wavelengths of the sample. The method includes comparing the measured set of correlations to a reference nontrivial set of correlations between optical illumination and emission wavelengths of a specific chemical analyte. The method also includes determining whether the specific chemical analyte is present in the sample based on a result of the comparing.Type: GrantFiled: October 20, 2006Date of Patent: May 17, 2016Assignee: Alcatel LucentInventor: Girsh Blumberg
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Publication number: 20160116413Abstract: A method for detecting or identifying a chemical analyte includes measuring a nontrivial set of correlations between optical illumination wavelengths of a sample and emission wavelengths of the sample. The method includes comparing the measured set of correlations to a reference nontrivial set of correlations between optical illumination and emission wavelengths of a specific chemical analyte. The method also includes determining whether the specific chemical analyte is present in the sample based on a result of the comparing.Type: ApplicationFiled: October 20, 2006Publication date: April 28, 2016Inventor: Girsh Blumberg
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Patent number: 8983242Abstract: According to one embodiment of the invention, a plasmonic device has a beam splitter adapted to split a surface-plasmon (SP) input beam into first and second SP beams and direct them along first and second propagation paths, respectively. One of the propagation paths has a plasmonic-beam interaction region adapted to controllably change the phase of the corresponding split beam within that interaction region in response to an SP control signal applied thereto. The plasmonic device further has an SP beam mixer adapted to receive the first and second beams from their respective propagation paths and to mix them to produce an SP output signal. In various configurations, the plasmonic device can operate as a plasmonic-signal amplifier, a plasmonic-beam router, a 1×2 plasmonic-beam switch, and/or a plasmonic modulator.Type: GrantFiled: January 31, 2008Date of Patent: March 17, 2015Assignee: Alcatel LucentInventors: Girsh Blumberg, Benard Yurke
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Patent number: 8344750Abstract: According to one embodiment, a surface-plasmon (SP) beam generated by an SP source and directed via an SP waveguide is applied to a gate node of a field-effect transistor (FET). The FET also has a source node and a drain node. In a representative configuration, the gate, source, and drain nodes are electrically biased to pass an electrical current between the source and drain nodes in a manner that makes the electrical current responsive to the intensity of the SP beam.Type: GrantFiled: March 25, 2008Date of Patent: January 1, 2013Assignee: Alcatel LucentInventor: Girsh Blumberg
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Patent number: 8139283Abstract: An apparatus includes a substrate having a metallic surface, a structure, and a dielectric object facing the metallic top surface. The structure is configured to optically produce surface plasmon polaritons that propagate on the metallic surface. The dielectric object is controllable to adjust values of the dielectric constant at an array of different positions along and near to the metallic surface.Type: GrantFiled: November 9, 2007Date of Patent: March 20, 2012Assignee: Alcatel LucentInventors: Vladimir Anatolyevich Aksyuk, Girsh Blumberg
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Patent number: 8005331Abstract: A frequency-conversion method that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. A periodic structure spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.Type: GrantFiled: February 1, 2011Date of Patent: August 23, 2011Assignee: Alcatel LucentInventors: Girsh Blumberg, Aref Chowdhury
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Publication number: 20110128614Abstract: A frequency-conversion method that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. A periodic structure spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.Type: ApplicationFiled: February 1, 2011Publication date: June 2, 2011Applicant: ALCATEL-LUCENT USA INC.Inventors: Girsh Blumberg, Aref Chowdhury
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Patent number: 7920766Abstract: An optical frequency converter that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. The optical frequency converter has a periodic structure that spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.Type: GrantFiled: February 10, 2009Date of Patent: April 5, 2011Assignee: Alcatel-Lucent USA Inc.Inventors: Girsh Blumberg, Aref Chowdhury
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Publication number: 20100202728Abstract: An optical frequency converter that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. The optical frequency converter has a periodic structure that spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.Type: ApplicationFiled: February 10, 2009Publication date: August 12, 2010Applicant: ALCATEL-LUCENT USA INC.Inventors: Girsh Blumberg, Aref Chowdhury
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Patent number: 7700006Abstract: An apparatus includes an object formed of a quasi-1D crystalline material that is capable of supporting a free sliding density wave state. The apparatus also includes first and second input terminals that connect across a portion of the object and first and second output terminals that connect across the same portion of the object.Type: GrantFiled: May 31, 2002Date of Patent: April 20, 2010Assignee: Alcatel-Lucent USA Inc.Inventors: Girsh Blumberg, Peter B. Littlewood
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Publication number: 20100086750Abstract: An apparatus 100, comprising an optical component 105 having a stack 180 of layers 182 of electrically conductive flexible polymers, the stack being a metamaterial.Type: ApplicationFiled: October 8, 2008Publication date: April 8, 2010Applicant: Lucent Technologies Inc.Inventors: Girsh Blumberg, Aref Chowdhury
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Patent number: 7619808Abstract: A method for producing a 3D image includes providing a pixel-by-pixel map over a preselected aperture of relative phases for coherent light scattered by or transmitted through a desired scene. The method includes positioning micro-mirrors of a reconfigurable mirror array to produce reflected light whose wave front has the pixel-by-pixel map over the preselected aperture in response to the array being illuminated with a coherent light beam. The method includes illuminating the reconfigurable mirror array with the coherent light beam to enable producing a 3D image of the desired scene.Type: GrantFiled: June 6, 2006Date of Patent: November 17, 2009Assignee: Alcatel-Lucent USA Inc.Inventor: Girsh Blumberg
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Publication number: 20090243589Abstract: According to one embodiment, a surface-plasmon (SP) beam generated by an SP source and directed via an SP waveguide is applied to a gate node of a field-effect transistor (FET). The FET also has a source node and a drain node. In a representative configuration, the gate, source, and drain nodes are electrically biased to pass an electrical current between the source and drain nodes in a manner that makes the electrical current responsive to the intensity of the SP beam.Type: ApplicationFiled: March 25, 2008Publication date: October 1, 2009Applicant: LUCENT TECHNOLOGIES INC.Inventor: Girsh Blumberg
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Publication number: 20090195782Abstract: According to one embodiment of the invention, a plasmonic device has a beam splitter adapted to split a surface-plasmon (SP) input beam into first and second SP beams and direct them along first and second propagation paths, respectively. One of the propagation paths has a plasmonic-beam interaction region adapted to controllably change the phase of the corresponding split beam within that interaction region in response to an SP control signal applied thereto. The plasmonic device further has an SP beam mixer adapted to receive the first and second beams from their respective propagation paths and to mix them to produce an SP output signal. In various configurations, the plasmonic device can operate as a plasmonic-signal amplifier, a plasmonic-beam router, a 1×2 plasmonic-beam switch, and/or a plasmonic modulator.Type: ApplicationFiled: January 31, 2008Publication date: August 6, 2009Applicant: LUCENT TECHNOLOGIES INC.Inventors: Girsh Blumberg, Benard Yurke
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Publication number: 20090142016Abstract: According to one embodiment, a circuit element for a plasmonic circuit is formed using a dielectric layer having two portions, each characterized by a different electric permittivity. The dielectric layer is adjacent to a metal layer, with the interface between the layers defining a conduit for propagation of surface plasmons. A dielectric boundary between the two portions of the dielectric layer is shaped to enable the circuit element to change one or more of propagation direction, cross-section, spectral composition, and intensity distribution for a beam of surface plasmons received by the circuit element.Type: ApplicationFiled: December 3, 2007Publication date: June 4, 2009Applicant: LUCENT TECHNOLOGIES INC.Inventors: Vladimir A. Aksyuk, Girsh Blumberg
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Publication number: 20090122386Abstract: An apparatus includes a substrate having a metallic surface, a structure, and a dielectric object facing the metallic top surface. The structure is configured to optically produce surface plasmon polaritons that propagate on the metallic surface. The dielectric object is controllable to adjust values of the dielectric constant at an array of different positions along and near to the metallic surface.Type: ApplicationFiled: November 9, 2007Publication date: May 14, 2009Inventors: Vladimir Anatolyevich Aksyuk, Girsh Blumberg
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Publication number: 20070279731Abstract: A method for producing a 3D image includes providing a pixel-by-pixel map over a preselected aperture of relative phases for coherent light scattered by or transmitted through a desired scene. The method includes positioning micro-mirrors of a reconfigurable mirror array to produce reflected light whose wave front has the pixel-by-pixel map over the preselected aperture in response to the array being illuminated with a coherent light beam. The method includes illuminating the reconfigurable mirror array with the coherent light beam to enable producing a 3D image of the desired scene.Type: ApplicationFiled: June 6, 2006Publication date: December 6, 2007Inventor: Girsh Blumberg
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Patent number: 7301137Abstract: An apparatus includes a chamber, an electro-mechanical driver, a window, and a mechanical cantilever. The chamber has an interior in which the mechanical cantilever is located. The mechanical cantilever has a first end that is attached to the electro-mechanical driver and has second end that is free. The driver is configured to drive the mechanical cantilever to perform an oscillatory motion. The window is located along a wall of the chamber to enable external light to enter the chamber and illuminate a portion of the mechanical cantilever. The mechanical cantilever is configured to mechanically respond to being illuminated by the external light entering the chamber via the window.Type: GrantFiled: April 10, 2006Date of Patent: November 27, 2007Assignee: Lucent Technologies Inc.Inventor: Girsh Blumberg
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Publication number: 20070235636Abstract: An apparatus includes a chamber, an electromechanical driver, a window, and a mechanical cantilever. The chamber has an interior in which the mechanical cantilever is located. The mechanical cantilever has a first end that is attached to the electro-mechanical driver and has second end that is free. The driver is configured to drive the mechanical cantilever to perform an oscillatory motion. The window is located along a wall of the chamber to enable external light to enter the chamber and illuminate a portion of the mechanical cantilever. The mechanical cantilever is configured to mechanically respond to being illuminated by the external light entering the chamber via the window.Type: ApplicationFiled: April 10, 2006Publication date: October 11, 2007Inventor: Girsh Blumberg
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Patent number: 7111504Abstract: An apparatus includes a sample stage, a cantilever mount, a cantilever-force detector, a cantilever feedback system, and a sample stage feedback system. The sample stage is configured for holding a sample. The cantilever mount is configured for mechanically fixing a mechanical cantilever having a scanning tip. The cantilever-force detector is configured to produce an electrical cantilever-force error signal. The cantilever feedback system is configured to electromechanically drive the mechanical cantilever in a manner responsive to the cantilever-force error signal. The sample stage feedback system is configured to electromechanically displace the sample stage in a manner responsive to the cantilever-force error signal. The cantilever feedback system and the sample stage feedback system are connected to receive the cantilever-force error signal in parallel.Type: GrantFiled: September 30, 2004Date of Patent: September 26, 2006Assignee: Lucent Technologies Inc.Inventors: Girsh Blumberg, Carl Johannes Schlockermann