Patents by Inventor James Edward Carey

James Edward Carey 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).

  • Publication number: 20200028002
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Application
    Filed: August 5, 2019
    Publication date: January 23, 2020
    Inventors: Eric Mazur, James Edward Carey
  • Patent number: 10374109
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: August 6, 2019
    Assignee: President and Fellows of Harvard College
    Inventors: Eric Mazur, James Edward Carey
  • Publication number: 20180083146
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Application
    Filed: October 16, 2017
    Publication date: March 22, 2018
    Inventors: Eric Mazur, James Edward Carey
  • Patent number: 9793425
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 17, 2017
    Assignee: President And Fellows Of Harvard College
    Inventors: Eric Mazur, James Edward Carey
  • Publication number: 20160364218
    Abstract: Techniques disclosed herein describe joining processing elements (e.g., of a streams processing environment) using optimization techniques, such as by whole program optimization. An optimization tool evaluates multiple processing elements based on one or more optimization rules. The optimization tool identifies, based on the evaluation, processing elements that can be merged. The optimization tool joins the identified processing elements together.
    Type: Application
    Filed: July 2, 2015
    Publication date: December 15, 2016
    Inventors: Eric Lawrence BARSNESS, Michael John BRANSON, James Edward CAREY, John M. SANTOSUOSSO
  • Publication number: 20160155864
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Application
    Filed: January 21, 2016
    Publication date: June 2, 2016
    Inventors: Eric Mazur, James Edward Carey
  • Patent number: 9276143
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 1, 2016
    Assignee: President And Fellows Of Harvard College
    Inventors: Eric Mazur, James Edward Carey
  • Publication number: 20140099745
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1. A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 10, 2014
    Applicant: President And Fellows Of Harvard College
    Inventors: Eric Mazur, James Edward Carey
  • Patent number: 8604580
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: December 10, 2013
    Assignee: President and Fellows of Harvard College
    Inventors: Eric Mazur, James Edward Carey
  • Patent number: 8080467
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: December 20, 2011
    Assignee: President and Fellows of Harvard College
    Inventors: James Edward Carey, III, Eric Mazur
  • Patent number: 7640233
    Abstract: Electronic messaging systems, a machine-accessible medium, and methods for text-based electronic communication. In one embodiment, a plurality of databases are provided. The databases each define shorthand terms with one or more longhand terms. A shorthand term is targeted within a text message, and the databases are searched for corresponding longhand terms. The longhand terms are selected for display according to factors such as user preferences, the identities of participants to the text communication, and the context of the text message. Abbreviations, shorthand, and other jargon sent by one user is thereby interpreted. For example, one of the longhand terms may be substituted in-line with the text message. Alternatively, all matches for the shorthand term found in the databases may be listed in descending order according to relevancy.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: December 29, 2009
    Assignee: International Business Machines Corporation
    Inventors: Randall Paul Baartman, James Edward Carey, Jason J. Illg, John Stephen Mysak
  • Patent number: 7546547
    Abstract: A method, apparatus and computer program product are provided for implementing automatic reapportionment of graphical screen subwindows based upon sensed, dynamic changes. Predefined dynamic change information is monitored for selected subwindows. The monitored predefined dynamic change information is compared with user selected configuration values to determine a reapportionment for the selected subwindows.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: June 9, 2009
    Assignee: International Business Machines Corporation
    Inventors: James Edward Carey, Scott N. Gerard
  • Patent number: 7504702
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: March 17, 2009
    Assignee: President & Fellows of Harvard College
    Inventors: Eric Mazur, James Edward Carey, III
  • Publication number: 20080258604
    Abstract: Methods and systems for absorbing infrared light, and for emitting current are described. A sample, such as a sample containing mainly silicon, is microstructured by at least one laser pulse to produce cone-like structures on the exposed surface. Such microstructuring enhances the infrared absorbing, and current emission properties of the sample.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 23, 2008
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Eric Mazur, James Edward Carey, Catherine H. Crouch, Rebecca Jane Younkin, Claudia Wu
  • Publication number: 20080172738
    Abstract: A method for verifying the validity of a hyperlink, and determining whether the domain name of the website that the user is directed to is valid. In one embodiment, the method identifies a hyperlink, a URL within the hyperlink and a domain name within the URL. The identified domain name is then assigned a page rank parameter. If the page rank parameter is below a threshold value, then the method compares the identified domain name to a list of well-known or high page rank domain names. A similarity parameter is then assigned to the identified domain name to indicate if the hyperlink is misleading. If the link is misleading, the method may implement some configurable remedial action, such as alerting the user or disabling the hyperlink.
    Type: Application
    Filed: January 11, 2007
    Publication date: July 17, 2008
    Inventors: Cary Lee Bates, James Edward Carey, Jason J. Illg
  • Patent number: 7390689
    Abstract: Methods and systems for absorbing infrared light, and for emitting current are described. A sample, such as a sample containing mainly silicon, is microstructured by at least one laser pulse to produce cone-like structures on the exposed surface. Such microstructuring enhances the infrared absorbing, and current emission properties of the sample.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: June 24, 2008
    Assignee: President and Fellows of Harvard College
    Inventors: Eric Mazur, James Edward Carey, III, Catherine H. Crouch, Rebecca Jane Younkin, Claudia Wu
  • Patent number: 7354792
    Abstract: The present invention provides methods of fabricating a radiation-absorbing semiconductor wafer by irradiating at least one surface location of a silicon substrate, e.g., an n-doped crystalline silicon, by a plurality of temporally short laser pulses, e.g., femtosecond pulses, while exposing that location to a substance, e.g., SF6, having an electron-donating constituent so as to generate a substantially disordered surface layer (i.e., a microstructured layer) that incorporates a concentration of that electron-donating constituent, e.g., sulfur. The substrate is also annealed at an elevated temperature and for a duration selected to enhance the charge carrier density in the surface layer. For example, the substrate can be annealed at a temperature in a range of about 700 K to about 900 K.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: April 8, 2008
    Assignee: President and Fellows of Harvard College
    Inventors: James Edward Carey, III, Eric Mazur
  • Publication number: 20080059421
    Abstract: Electronic messaging systems, a machine-accessible medium, and methods for text-based electronic communication. In one embodiment, a plurality of databases are provided. The databases each define shorthand terms with one or more longhand terms. A shorthand term is targeted within a text message, and the databases are searched for corresponding longhand terms. The longhand terms are selected for display according to factors such as user preferences, the identities of participants to the text communication, and the context of the text message. Abbreviations, shorthand, and other jargon sent by one user is thereby interpreted. For example, one of the longhand terms may be substituted in-line with the text message. Alternatively, all matches for the shorthand term found in the databases may be listed in descending order according to relevancy.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 6, 2008
    Inventors: Randall Paul Baartman, James Edward Carey, Jason J. Illg, John Stephen Mysak
  • Patent number: 7085756
    Abstract: A computer-implemented method, system and computer product arranged for use by a requester of data in an environment of coupled requesters and providers, the method comprising, invoking a selection strategy mechanism having one or more replaceable selection strategies, and selecting a provider through operation of the replaceable selection strategy, wherein the replaceable selection strategy is applied while performing one or more search queries directed to the providers.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: August 1, 2006
    Assignee: International Business Machines Corporation
    Inventors: James Edward Carey, Bradley William Fawcett
  • Patent number: 7057256
    Abstract: In one aspect, the present invention provides a silicon photodetector having a surface layer that is doped with sulfur inclusions with an average concentration in a range of about 0.5 atom percent to about 1.5 atom percent. The surface layer forms a diode junction with an underlying portion of the substrate. A plurality of electrical contacts allow application of a reverse bias voltage to the junction in order to facilitate generation of an electrical signal, e.g., a photocurrent, in response to irradiation of the surface layer. The photodetector exhibits a responsivity greater than about 1 A/W for incident wavelengths in a range of about 250 nm to about 1050 nm, and a responsivity greater than about 0.1 A/W for longer wavelengths, e.g., up to about 3.5 microns.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: June 6, 2006
    Assignee: President & Fellows of Harvard College
    Inventors: James Edward Carey, III, Eric Mazur