Patents by Inventor Abdelhak Bensaoula
Abdelhak Bensaoula 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: 10241058Abstract: Quality control of a periodic structure is performed using the damping rate of acoustic waves generated in the periodic structure. In this technique, an excitation light beam illuminates the first layer in the periodic structure to excite an acoustic wave. Possible irregularities in the periodic structure can scatter the acoustic wave, thereby increasing the damping rate of the acoustic wave. A sequence of probe light beams illuminates the periodic structure to measure the acoustic wave as a function of time to generated a temporal signal representing the damping rate of the acoustic signal. The acquired damping rate is employed to evaluate the quality of the periodic structure.Type: GrantFiled: July 5, 2017Date of Patent: March 26, 2019Assignee: Massachusetts Institute of TechnologyInventors: Alexei Maznev, Keith A. Nelson, Abdelhak Bensaoula, Jateen S. Gandhi, Donna Washington Stokes, Rebecca Lynne Forrest, Hyun Doug Shin
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Publication number: 20180011031Abstract: Quality control of a periodic structure is performed using the damping rate of acoustic waves generated in the periodic structure. In this technique, an excitation light beam illuminates the first layer in the periodic structure to excite an acoustic wave. Possible irregularities in the periodic structure can scatter the acoustic wave, thereby increasing the damping rate of the acoustic wave. A sequence of probe light beams illuminates the periodic structure to measure the acoustic wave as a function of time to generated a temporal signal representing the damping rate of the acoustic signal. The acquired damping rate is employed to evaluate the quality of the periodic structure.Type: ApplicationFiled: July 5, 2017Publication date: January 11, 2018Inventors: Alexei Maznev, Keith A. NELSON, Abdelhak BENSAOULA, Jateen S. GANDHI, Donna Washington STOKES, Rebecca Lynne FORREST, Hyun Doug SHIN
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Patent number: 9691933Abstract: The structure and method of fabricating a radiation and temperature hard avalanche photodiode with integrated radiation and temperature hard readout circuit, comprising a substrate, an avalanche region, an absorption region, and a plurality of Ohmic contacts are presented. The present disclosure provides for tuning of spectral sensitivity and high device efficiency, resulting in photon counting capability with decreased crosstalk and reduced dark current.Type: GrantFiled: March 24, 2015Date of Patent: June 27, 2017Assignee: UNIVERSITY OF HOUSTON SYSTEMInventors: Abdelhak Bensaoula, David Starikov, Rajeev Pillai
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Patent number: 9671507Abstract: The structure and methods of fabricating a high efficiency compact solid state neutron detector based on III-Nitride semiconductor structures deposited on a substrate. The operation of the device is based on absorption of neutrons, which results in generation of free carriers.Type: GrantFiled: March 24, 2015Date of Patent: June 6, 2017Assignee: UNIVERSITY OF HOUSTON SYSTEMInventors: Abdelhak Bensaoula, David Starikov, Rajeev Pillai
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Patent number: 9550071Abstract: A method for generating light intensity inside a tumor to aid in the treatment of diseases such as cancer is disclosed. The light is generated inside the body to perform a modified photodynamic therapy treatment (PDT) that allows treatment of body regions that are inaccessible by normal PDT procedures. In addition, the use of two spatially and temporally coincident treatment modalities, i.e. radiation and PDT, have the potential for significant biological synergy in the tumor.Type: GrantFiled: November 27, 2012Date of Patent: January 24, 2017Assignee: THE UNIVERSITY OF HOUSTON SYSTEMInventors: Abdelhak Bensaoula, John Christopher Boney, A. Sam Beddar, Tina Marie Briere, Sunil Krishnan, Andrew K. Lee
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Patent number: 9318626Abstract: High performance photovoltaic devices are provided. Certain embodiments relate to the use of Boron-Nitride (BN) thin films as anti-reflection coating (ARC) material on Si and GaAs solar cells. A low and wide reflectance window covering a large energy range of the solar spectrum is available. For a large part of the useful solar spectrum, the index of refraction of the grown BN thin films remains constant at about 2.8. In another embodiment, a BN ARC is applied directly on ordinary window glass providing the device's mechanical strength.Type: GrantFiled: April 23, 2014Date of Patent: April 19, 2016Assignee: THE UNIVERSITY OF HOUSTONInventors: Nacer Badi, Alex Freundlich, Abdelhak Bensaoula, Andenet Alemu
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Publication number: 20150280045Abstract: The structure and method of fabricating a radiation and temperature hard avalanche photodiode with integrated radiation and temperature hard readout circuit, comprising a substrate, an avalanche region, an absorption region, and a plurality of Ohmic contacts are presented. The present disclosure provides for tuning of spectral sensitivity and high device efficiency, resulting in photon counting capability with decreased crosstalk and reduced dark current.Type: ApplicationFiled: March 24, 2015Publication date: October 1, 2015Inventors: Abdelhak Bensaoula, David Starikov, Rajeev Pillai
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Publication number: 20150276950Abstract: The structure and methods of fabricating a high efficiency compact solid state neutron detector based on III-Nitride semiconductor structures deposited on a substrate. The operation of the device is based on absorption of neutrons, which results in generation of free carriers.Type: ApplicationFiled: March 24, 2015Publication date: October 1, 2015Inventors: Abdelhak Bensaoula, David Starikov, Rajeev Pillai
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Patent number: 8962151Abstract: Improved methods of bonding solid materials include a step of fabricating a micro-column array (MCA) on at least one surface to be bonded. The MCA formation process can be modified to cause and/or prevent chemical alteration of the surface being treated or to deposit a coating on the surface. In a preferred embodiment, the MCA is fabricated by laser treating the surface, such as by laser ablation.Type: GrantFiled: August 10, 2007Date of Patent: February 24, 2015Assignee: Integrated Micro Sensors, Inc.Inventors: David Starikov, Abdelhak Bensaoula
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Publication number: 20140230893Abstract: High performance photovoltaic devices are provided. Certain embodiments relate to the use of Boron-Nitride (BN) thin films as anti-reflection coating (ARC) material on Si and GaAs solar cells. A low and wide reflectance window covering a large energy range of the solar spectrum is available. For a large part of the useful solar spectrum, the index of refraction of the grown BN thin films remains constant at about 2.8. In another embodiment, a BN ARC is applied directly on ordinary window glass providing the device's mechanical strength.Type: ApplicationFiled: April 23, 2014Publication date: August 21, 2014Applicant: The University of HoustonInventors: Nacer Badi, Alex Freundlich, Abdelhak Bensaoula, Andenet Alemu
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Patent number: 8716595Abstract: High performance photovoltaic devices are provided. Certain embodiments relate to the use of Boron-Nitride (BN) thin films as anti-reflection coating (ARC) material on Si and GaAs solar cells. A low and wide reflectance window covering a large energy range of the solar spectrum is available. For a large part of the useful solar spectrum, the index of refraction of the grown BN thin films remains constant at about 2.8. In another embodiment, a BN ARC is applied directly on ordinary window glass providing the device's mechanical strength.Type: GrantFiled: March 24, 2009Date of Patent: May 6, 2014Assignee: The University of HoustonInventors: Nacer Badi, Alex Freundlich, Abdelhak Bensaoula, Andenet Alemu
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Patent number: 8328785Abstract: A method for generating light intensity inside a tumor to aid in the treatment of diseases such as cancer is disclosed. The light is generated inside the body to perform a modified photodynamic therapy treatment (PDT) that allows treatment of body regions that are inaccessible by normal PDT procedures. In addition, the use of two spatially and temporally coincident treatment modalities, i.e. radiation and PDT, have the potential for significant biological synergy in the tumor.Type: GrantFiled: September 17, 2007Date of Patent: December 11, 2012Assignees: The University of Houston System, Board of Regents, The University of Texas SystemInventors: Abdelhak Bensaoula, John Christopher Boney, A. Sam Beddar, Tina Marie Briere, Sunil Krishnan, Andrew K. Lee
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Publication number: 20100157509Abstract: A method for storing energy in a capacitor includes connecting a first conductor to a first electrode and a second conductor to a second electrode. The second electrode is separated from the first electrode by a dielectric layer. The dielectric layer includes a layer of boron oxynitride, BON. The conductivity of the dielectric layer is lower than the conductivity of the first electrode or the second electrode. A voltage of at least 5 volts is applied between the first electrode and the second electrode by means of the first and second conductors.Type: ApplicationFiled: December 20, 2008Publication date: June 24, 2010Applicant: Integrated Micro Sensors Inc.Inventors: Nacer Badi, Abdelhak Bensaoula
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Publication number: 20090235981Abstract: High performance photovoltaic devices are provided. Certain embodiments relate to the use of Boron-Nitride (BN) thin films as anti-reflection coating (ARC) material on Si and GaAs solar cells. A low and wide reflectance window covering a large energy range of the solar spectrum is available. For a large part of the useful solar spectrum, the index of refraction of the grown BN thin films remains constant at about 2.8. In another embodiment, a BN ARC is applied directly on ordinary window glass providing the device's mechanical strength.Type: ApplicationFiled: March 24, 2009Publication date: September 24, 2009Inventors: Nacer Badi, Alex Freundlich, Abdelhak Bensaoula, Andernet Alemu
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Patent number: 7566875Abstract: A photodetector having sensitivity in a wide temperature range in both an infrared and an ultraviolet band is provided. The photodetector is formed on a single chip and is designed to be blind to solar or visible radiation. Structures disclosed allow fast and efficient detection of signals with high spatial and temporal resolution. Such sensors may be used for multi-pixel focal arrays and applied for fire detection applications, various space- and military-related applications and other applications. A method for increasing rejection of visible light by the IR sensitive material is also provided.Type: GrantFiled: March 19, 2008Date of Patent: July 28, 2009Assignee: Integrated Micro Sensors Inc.Inventors: David Starikov, Abdelhak Bensaoula
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Publication number: 20080213612Abstract: Improved methods of bonding solid materials include a step of fabricating a micro-column array (MCA) on at least one surface to be bonded. The MCA formation process can be modified to cause and/or prevent chemical alteration of the surface being treated or to deposit a coating on the surface. In a preferred embodiment, the MCA is fabricated by laser treating the surface, such as by laser ablation.Type: ApplicationFiled: August 10, 2007Publication date: September 4, 2008Inventors: David Starikov, Abdelhak Bensaoula
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Publication number: 20080157253Abstract: A photodetector having sensitivity in a wide temperature range in both an infrared and an ultraviolet band is provided. The photodetector is formed on a single chip and is designed to be blind to solar or visible radiation. Structures disclosed allow fast and efficient detection of signals with high spatial and temporal resolution. Such sensors may be used for multi-pixel focal arrays and applied for fire detection applications, various space- and military-related applications and other applications. A method for increasing rejection of visible light by the IR sensitive material is also provided.Type: ApplicationFiled: March 19, 2008Publication date: July 3, 2008Applicant: INTEGRATED MICRO SENSORS INC.Inventors: David Starikov, Abdelhak Bensaoula
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Publication number: 20080139993Abstract: A method for generating light intensity inside a tumor to aid in the treatment of diseases such as cancer is disclosed. The light is generated inside the body to perform a modified photodynamic therapy treatment (PDT) that allows treatment of body regions that are inaccessible by normal PDT procedures. In addition, the use of two spatially and temporally coincident treatment modalities, i.e. radiation and PDT, have the potential for significant biological synergy in the tumor.Type: ApplicationFiled: September 17, 2007Publication date: June 12, 2008Applicants: THE UNIVERSITY OF HOUSTON SYSTEM, BOARD OF REAGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Abdelhak Bensaoula, John Christopher Boney, A. Sam Beddar, Tina Marie Briere, Sunil Krishnan, Andrew K. Lee
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Patent number: 7381966Abstract: A photodetector having sensitivity in both an infrared and an ultraviolet band is provided. The photodetector is formed on a single chip and is designed to be blind to solar or visible radiation. Structures disclosed allow fast and efficient detection of signals with high spatial and temporal resolution. Such sensors may be used for multi-pixel focal arrays and applied for fire detection applications, various space- and military-related applications and other applications.Type: GrantFiled: April 13, 2006Date of Patent: June 3, 2008Assignee: Integrated Micro Sensors, Inc.Inventors: David Starikov, Abdelhak Bensaoula
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Publication number: 20070241279Abstract: A photodetector having sensitivity in both an infrared and an ultraviolet band is provided. The photodetector is formed on a single chip and is designed to be blind to solar or visible radiation. Structures disclosed allow fast and efficient detection of signals with high spatial and temporal resolution. Such sensors may be used for multi-pixel focal arrays and applied for fire detection applications, various space- and military-related applications and other applications.Type: ApplicationFiled: April 13, 2006Publication date: October 18, 2007Inventors: David Starikov, Abdelhak Bensaoula