Patents by Inventor Jonathan R. Tischler

Jonathan R. Tischler 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).

  • Patent number: 9841544
    Abstract: Disclosed are a device and a method for the design and fabrication of the device for enhancing the brightness of luminescent molecules, nanostructures, and thin films. The device includes a mirror, a dielectric medium or spacer, an absorptive layer, and a luminescent layer. The absorptive layer is a continuous thin film of a strongly absorbing organic or inorganic material. The luminescent layer may be a continuous luminescent thin film or an arrangement of isolated luminescent species, e.g., organic or metal-organic dye molecules, semiconductor quantum dots, or other semiconductor nanostructures, supported on top of the absorptive layer.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 12, 2017
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Gleb M. Akselrod, Moungi G. Bawendi, Vladimir Bulovic, Jonathan R. Tischler, William A. Tisdale, Brian J. Walker
  • Publication number: 20150153493
    Abstract: Disclosed are a device and a method for the design and fabrication of the device for enhancing the brightness of luminescent molecules, nanostructures, and thin films. The device includes a mirror, a dielectric medium or spacer, an absorptive layer, and a luminescent layer. The absorptive layer is a continuous thin film of a strongly absorbing organic or inorganic material. The luminescent layer may be a continuous luminescent thin film or an arrangement of isolated luminescent species, e.g., organic or metal-organic dye molecules, semiconductor quantum dots, or other semiconductor nanostructures, supported on top of the absorptive layer.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 4, 2015
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Gleb M. Akselrod, Moungi G. Bawendi, Vladimir Bulovic, Jonathan R. Tischler, William A. Tisdale, Brian J. Walker
  • Patent number: 8908261
    Abstract: Disclosed are a device and a method for the design and fabrication of the device for enhancing the brightness of luminescent molecules, nanostructures, and thin films. The device includes a mirror, a dielectric medium or spacer, an absorptive layer, and a luminescent layer. The absorptive layer is a continuous thin film of a strongly absorbing organic or inorganic material. The luminescent layer may be a continuous luminescent thin film or an arrangement of isolated luminescent species, e.g., organic or metal-organic dye molecules, semiconductor quantum dots, or other semiconductor nanostructures, supported on top of the absorptive layer.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: December 9, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Gleb M. Akselrod, Moungi G. Bawendi, Vladimir Bulovic, Jonathan R. Tischler, William A. Tisdale, Brian J. Walker
  • Patent number: 8809876
    Abstract: Materials can be prepared in a layer-by-layer fashion on a patterned first substrate and subsequently transferred to a second substrate. The transfer step can preserve the pattern of the first substrate, such that the second substrate will bear a pattern of the transferred material. The material can be an electrostatic multilayer including a light absorbing dye, such as a J-aggregating cyanine dye.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: August 19, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Michael Scott Bradley, Jonathan R. Tischler, Vladimir Bulovic
  • Patent number: 8748219
    Abstract: The disclosed device is a solid state organic semiconductor VCSEL in which the microcavity is composed of metal and dielectric mirrors and the gain layer is only ?/2n thick. The gain layer comprises a thermally evaporated 156.7 nm thick film of the laser dye DCM doped (2.5% v/v) into an Alq3 host matrix. The microcavity consists of 2 mirrors, a dielectric Bragg reflector (DBR) sputter-coated onto a quartz substrate as the mirror through which the organic gain layer is optically excited and laser emission is collected and a silver mirror that is thermally evaporated on top of the Alq3:DCM film. The device exhibits laser action from the DCM both when the DCM molecules are excited directly at 535 nm and via Förster Resonance Energy Transfer (FRET) from the Alq3 (excited at 404 nm) with laser thresholds of 4.9 ?J/cm2 and 14.2 ?J/cm2 respectively.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: June 10, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Jonathan R. Tischler, Elizabeth R. Young, Daniel G. Nocera, Vladimir Bulovic
  • Patent number: 8692747
    Abstract: Embodiments of the present invention provide for an array, and corresponding method of forming an array, that includes a plurality of light emitting devices. The light emitting devices are disposed over a substrate, and a photodetector detects light emitted through the substrate from the light emitting devices. Further, a substantially constant brightness may be maintained in a plurality of light emitting devices disposed over the upper surface of a substrate in an array. Light emitted through the substrate from each of the light emitting devices is measured, and the voltage level applied to each of the light emitting devices is varied to maintain a substantially constant brightness level of light emitted from the light emitting devices.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: April 8, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Vladimir Bulovic, Yaakov (Jonathan) R. Tischler, Jennifer Galela
  • Patent number: 8693837
    Abstract: An optical fiber including a surface including a non-covalent multilayer including a light-absorbing material can be used to develop fluorescence microscopy with a lateral resolution of about 5 nm and possibly lower. The non-covalent multilayer can be a highly absorptive thin film, for example a film based on J-aggregates, which can be used with conventional Near-Field Scanning Optical Microscopy.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: April 8, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Jonathan R. Tischler, Michael Scott Bradley, Vladimir Bulovic
  • Publication number: 20140009955
    Abstract: An optical structure can include a nanocrystal on a surface of an optical waveguide in a manner to couple the nanocrystal to the optical field of light propagating through the optical waveguide to generate an emission from the nanocrystal.
    Type: Application
    Filed: June 24, 2013
    Publication date: January 9, 2014
    Inventors: Vladimir Bulovic, Ioannis Kymissis, Moungi G. Bawendi, Jonathan R. Tischler, Michael Scott Bradley, David Oertel, Jennifer Yu
  • Publication number: 20130335826
    Abstract: A critically coupled optical resonator absorbs greater than 95% of incident light of the critical wavelength with an absorber layer less than 10 nm thick.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 19, 2013
    Applicant: Massachusetts Institute of Technology
    Inventors: Jonathan R. Tischler, Michael Scott Bradley, Vladimir Bulovic
  • Patent number: 8480927
    Abstract: A composition can include a first moiety capable of being excited to an excited state, and a second moiety capable of accepting excited state energy from the first moiety. The second moiety is capable of emitting light with a FWHM of 15 nm or less when excited. The second moiety can be a J-aggregate and the first moiety can be a semiconductor nanocrystal.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: July 9, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Jonathan E. Halpert, Jonathan R. Tischler, Moungi Bawendi, Vladimir Bulovic
  • Patent number: 8472758
    Abstract: An optical structure can include a nanocrystal on a surface of an optical waveguide in a manner to couple the nanocrystal to the optical field of light propagating through the optical waveguide to generate an emission from the nanocrystal.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: June 25, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Vladimir Bulovic, Ioannis Kymissis, Moungi G. Bawendi, Jonathan R. Tischler, Michael Scott Bradley, David Oertel, Jennifer Yu
  • Patent number: 8449125
    Abstract: A critically coupled optical resonator absorbs greater than 95% of incident light of the critical wavelength with an absorber layer less than 10 nm thick.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: May 28, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Jonathan R. Tischler, Michael Scott Bradley, Vladimir Bulovic
  • Patent number: 8390544
    Abstract: Embodiments of the present invention provide for an array, and corresponding method of forming an array, that includes a plurality of light emitting devices. The light emitting devices are disposed over a substrate, and a photodetector detects light emitted through the substrate from the light emitting devices. Further, a substantially constant brightness may be maintained in a plurality of light emitting devices disposed over the upper surface of a substrate in an array. Light emitted through the substrate from each of the light emitting devices is measured, and the voltage level applied to each of the light emitting devices is varied to maintain a substantially constant brightness level of light emitted from the light emitting devices.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: March 5, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Vladimir Bulovic, Jonathan R. Tischler, Jennifer Yu
  • Publication number: 20120327052
    Abstract: Embodiments of the present invention provide for an array, and corresponding method of forming an array, that includes a plurality of light emitting devices. The light emitting devices are disposed over a substrate, and a photodetector detects light emitted through the substrate from the light emitting devices. Further, a substantially constant brightness may be maintained in a plurality of light emitting devices disposed over the upper surface of a substrate in an array. Light emitted through the substrate from each of the light emitting devices is measured, and the voltage level applied to each of the light emitting devices is varied to maintain a substantially constant brightness level of light emitted from the light emitting devices.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 27, 2012
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Vladimir Bulovic, Jonathan R. Tischler, Jennifer Yu
  • Patent number: 8264431
    Abstract: Embodiments of the present invention provide for an array, and corresponding method of forming an array, that includes a plurality of light emitting devices. The light emitting devices are disposed over a substrate, and a photodetector detects light emitted through the substrate from the light emitting devices. Further, a substantially constant brightness may be maintained in a plurality of light emitting devices disposed over the upper surface of a substrate in an array. Light emitted through the substrate from each of the light emitting devices is measured, and the voltage level applied to each of the light emitting devices is varied to maintain a substantially constant brightness level of light emitted from the light emitting devices.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: September 11, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Vladimir Bulovic, Jonathan R. Tischler, Jennifer Yu
  • Publication number: 20120188633
    Abstract: Disclosed are a device and a method for the design and fabrication of the device for enhancing the brightness of luminescent molecules, nanostructures, and thin films. The device includes a mirror, a dielectric medium or spacer, an absorptive layer, and a luminescent layer. The absorptive layer is a continuous thin film of a strongly absorbing organic or inorganic material. The luminescent layer may be a continuous luminescent thin film or an arrangement of isolated luminescent species, e.g., organic or metal-organic dye molecules, semiconductor quantum dots, or other semiconductor nanostructures, supported on top of the absorptive layer.
    Type: Application
    Filed: January 26, 2012
    Publication date: July 26, 2012
    Inventors: Gleb M. Akselrod, Moungi G. Bawendi, Vladimir Bulovic, Jonathan R. Tischler, William A. Tisdale, Brian J. Walker
  • Publication number: 20110235668
    Abstract: The disclosed device is a solid state organic semiconductor VCSEL in which the microcavity is composed of metal and dielectric mirrors and the gain layer is only ?/2n thick. The gain layer comprises a thermally evaporated 156.7 nm thick film of the laser dye DCM doped (2.5% v/v) into an Alq3 host matrix. The microcavity consists of 2 mirrors, a dielectric Bragg reflector (DBR) sputter-coated onto a quartz substrate as the mirror through which the organic gain layer is optically excited and laser emission is collected and a silver mirror that is thermally evaporated on top of the Alq3:DCM film. The device exhibits laser action from the DCM both when the DCM molecules are excited directly at 535 nm and via Förster Resonance Energy Transfer (FRET) from the Alq3 (excited at 404 nm) with laser thresholds of 4.9 ?J/cm2 and 14.2 ?J/cm2 respectively.
    Type: Application
    Filed: September 8, 2009
    Publication date: September 29, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: Jonathan R. Tischler, Elizabeth R. Young, Daniel G. Nocera, Vladimir Bulovic
  • Publication number: 20110057125
    Abstract: A composition can include a first moiety capable of being excited to an excited state, and a second moiety capable of accepting excited state energy from the first moiety. The second moiety is capable of emitting light with a FWHM of 15 nm or less when excited. The second moiety can be a J-aggregate and the rust moiety can be a semiconductor nanocrystal.
    Type: Application
    Filed: August 14, 2008
    Publication date: March 10, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: Jonathan E. Halpert, Jonathan R. Tischler, Moungi Bawendi, Vladimir Bulovic
  • Publication number: 20100306888
    Abstract: An optical fiber including a surface including a non-covalent multilayer including a light-absorbing material can be used to develop fluorescence microscopy with a lateral resolution of about 5 nm and possibly lower. The non-covalent multilayer can be a highly absorptive thin film, for example a film based on J-aggregates, which can be used with conventional Near-Field Scanning Optical Microscopy.
    Type: Application
    Filed: March 19, 2008
    Publication date: December 2, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Jonathan R. Tischler, Michael Scott Bradley, Vladimir Bulovic
  • Publication number: 20100051967
    Abstract: Materials can be prepared in a layer-by-layer fashion on a patterned first substrate and subsequently transferred to a second substrate. The transfer step can preserve the pattern of the first substrate, such that the second substrate will bear a pattern of the transferred material. The material can be an electrostatic multilayer including a light absorbing dye, such as a J-aggregating cyanine dye.
    Type: Application
    Filed: February 14, 2007
    Publication date: March 4, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Michael Scott Bradley, Jonathan R. Tischler, Vladimir Bulovic