Patents by Inventor Carlos A. Meriles

Carlos A. Meriles 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: 10725135
    Abstract: A method of inducing spin polarization in an analyte is provided. The method exposes 14N spin defect centers embedded within 25 nm of a diamond surface to a magnetic field while an analyte is near the surface. The 14N spin defect centers are polarized by treatment with an electromagnetic wave protocol having a visible light pulse (p0); a microwave pulse (mw1), a radio frequency pulse (rf1), a microwave pulse (mw2) and a radio frequency pulse (rf2) resulting in polarization of the nuclear spins of the 14N spin defect centers. Polarized spins in the 14N spin defect centers induce spin polarization in the analyte.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: July 28, 2020
    Assignee: Research Foundation of the City University of New York
    Inventors: Carlos A. Meriles, Daniela Pagliero, Abdelghani Laraoui
  • Patent number: 10330750
    Abstract: A method and apparatus for polarizing nuclear or electronic spins is disclosed. An analyte is passed near a surface that has a plurality of spin defect centers implanted within 10 nm of the surface. The spin defect centers are exposed to a magnetic field and illumination to produce polarized spins. The polarized spins then induce spin polarization in the analyte.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: June 25, 2019
    Assignee: Research Foundation of the City University of New York
    Inventor: Carlos A. Meriles
  • Publication number: 20190154781
    Abstract: A method of inducing spin polarization in an analyte is provided. The method exposes 14N spin defect centers embedded within 25 nm of a diamond surface to a magnetic field while an analyte is near the surface. The 14N spin defect centers are polarized by treatment with an electromagnetic wave protocol having a visible light pulse (p0); a microwave pulse (mw1), a radio frequency pulse (rf1), a microwave pulse (mw2) and a radio frequency pulse (rf2) resulting in polarization of the nuclear spins of the 14N spin defect centers. Polarized spins in the 14N spin defect centers induce spin polarization in the analyte.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 23, 2019
    Inventors: Carlos A. Meriles, Daniela Pagliero, Abdelghani Laraoui
  • Patent number: 10180479
    Abstract: A method of inducing spin polarization in an analyte is provided. The method exposes 14N spin defect centers embedded within 25 nm of a diamond surface to a magnetic field while an analyte is near the surface. The 14N spin defect centers are polarized by treatment with an electromagnetic wave protocol having a visible light pulse (p0); a microwave pulse (mw1), a radio frequency pulse (rf1), a microwave pulse (mw2) and a radio frequency pulse (rf2) resulting in polarization of the nuclear spins of the 14N spin defect centers. Polarized spins in the 14N spin defect centers induce spin polarization in the analyte.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: January 15, 2019
    Assignee: Research Foundation of the City University of New York
    Inventors: Carlos A. Meriles, Daniela Pagliero, Abdelghani Laraoui
  • Publication number: 20180252781
    Abstract: A method for optically storing and retrieving information is provided that irradiates spin-defect centers in a substrate with red or blue light to change the charge state to form a pattern. This pattern encodes information and long-term data storage. The information is retrieved by irradiating the pattern with red light that causes the pattern to undergo fluorescence.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Inventors: Carlos A. Meriles, Siddharth Dhomkar, Jacob Henshaw, Harishankar Jayakumar, Pablo R. Zangara
  • Publication number: 20160161583
    Abstract: A method of dynamically polarizing the nuclear spin host of nitrogen-vacancy (NV) centers in diamond is provided. The method uses optical, microwave and radio-frequency pulses to recursively transfer spin polarization from the NV electronic spin. Nitrogen nuclear spin initialization approaching 80% at room temperature is demonstrated both in ensemble and single NV centers without relying on level anti-crossings. This makes the method applicable at arbitrary magnetic fields.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 9, 2016
    Inventors: Carlos A. Meriles, Daniela Pagliero, Abdelghani Laraoui
  • Publication number: 20160054402
    Abstract: A method and apparatus for polarizing nuclear or electronic spins is disclosed. An analyte is passed near a surface that has a plurality of spin defect centers implanted within 10 nm of the surface. The spin defect centers are exposed to a magnetic field and illumination to produce polarized spins. The polarized spins then induce spin polarization in the analyte.
    Type: Application
    Filed: April 7, 2014
    Publication date: February 25, 2016
    Inventor: Carlos A. Meriles
  • Patent number: 7750633
    Abstract: A method and system of magnetic resonance imaging does not need a large homogenous field to truncate a gradient field. Spatial information is encoded into the spin magnetization by allowing the magnetization to evolve in a non-truncated gradient field and inducing a set of 180 degree rotations prior to signal acquisition.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: July 6, 2010
    Assignee: The Regents of the University of California
    Inventors: Alexander Pines, Dimitrios Sakellariou, Carlos A. Meriles, Andreas H. Trabesinger
  • Publication number: 20090261826
    Abstract: A method and system of magnetic resonance imaging does not need a large homogenous field to truncate a gradient field. Spatial information is encoded into the spin magnetization by allowing the magnetization to evolve in a non-truncated gradient field and inducing a set of 180 degree rotations prior to signal acquisition.
    Type: Application
    Filed: July 21, 2005
    Publication date: October 22, 2009
    Inventors: Alexander Pines, Dimitrios Sakellariou, Carlos A. Meriles, Andreas H. Trabesinger
  • Patent number: 7439738
    Abstract: Methods and systems for compensating for static magnetic field inhomogeneities during nuclear magnetic resonance detection are disclosed. Application of radio frequency pulses and/or magnetic field gradients may be used to correct for spin dephasing caused by the inhomogeneities. The methods and system may be used to improve signal-to-noise ratios in NMR and MRI systems where magnetic field inhomogeneity may have an effect.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: October 21, 2008
    Assignee: The Regents of The University of California
    Inventors: Alexander Pines, Daniel Topgaard, Dimitrios Sakellariou, Rachel W. Martin, Carlos A. Meriles
  • Publication number: 20070194788
    Abstract: Methods and systems for compensating for static magnetic field inhomogeneities during nuclear magnetic resonance detection are disclosed. Application of radio frequency pulses and/or magnetic field gradients may be used to correct for spin dephasing caused by the inhomogeneities. The methods and system may be used to improve signal-to-noise ratios in NMR and MRI systems where magnetic field inhomogeneity may have an effect.
    Type: Application
    Filed: January 19, 2007
    Publication date: August 23, 2007
    Inventors: Alexander Pines, Daniel Topgaard, Dimitrios Sakellariou, Rachel Martin, Carlos Meriles
  • Patent number: 7199584
    Abstract: A probe, device, and methods for performing nuclear magnetic resonance (NMR) measurements on a suitable sample are provided. The probe includes a hyper polarized tip positioned to cause a dipolar interaction between the tip and sample. The nuclear magnetic spin of a selected portion of the sample induces a modulation of tip magnetization, which is proportional to the local magnetization of the selected portion. An NMR device includes the probe, a radio frequency (RF) coil for manipulating spins in the sample and tip, and a means for detecting the modulation of tip magnetization. An RF pulse sequence selects the selected portion and allows detection of the modulation. The method for obtaining NMR data includes positioning the tip to induce the dipolar interaction; selecting the sample portion; modulating the tip magnetization in response thereto; and detecting the tip modulation. The device and method may be adapted to obtain NMR images and spectroscopy.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: April 3, 2007
    Assignee: Research Foundation of the City University of New York
    Inventor: Carlos Meriles
  • Publication number: 20060273794
    Abstract: A probe, device, and methods for performing nuclear magnetic resonance (NMR) measurements on a suitable sample are provided. The probe includes a hyperpolarized tip positioned to cause a dipolar interaction between the tip and sample. The nuclear magnetic spin of a selected portion of the sample induces a modulation of tip magnetization, which is proportional to the local magnetization of the selected portion. An NMR device includes the probe, a radio frequency (RF) coil for manipulating spins in the sample and tip, and a means for detecting the modulation of tip magnetization. An RF pulse sequence selects the selected portion and allows detection of the modulation. The method for obtaining NMR data includes positioning the tip to induce the dipolar interaction; selecting the sample portion; modulating the tip magnetization in response thereto; and detecting the tip modulation. The device and method may be adapted to obtain NMR images and spectroscopy.
    Type: Application
    Filed: June 7, 2005
    Publication date: December 7, 2006
    Inventor: Carlos Meriles
  • Patent number: 6674282
    Abstract: A method and apparatus for ex-situ nuclear magnetic resonance spectroscopy for use on samples outside the physical limits of the magnets in inhomogeneous static and radio-frequency fields. Chemical shift spectra can be resolved with the method using sequences of correlated, composite z-rotation pulses in the presence of spatially matched static and radio frequency field gradients producing nutation echoes. The amplitude of the echoes is modulated by the chemical shift interaction and an inhomogeneity free FID may be recovered by stroboscopically sampling the maxima of the echoes. In an alternative embodiment, full-passage adiabatic pulses are consecutively applied. One embodiment of the apparatus generates a static magnetic field that has a variable saddle point.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: January 6, 2004
    Assignee: The Regents of the University of California
    Inventors: Alexander Pines, Carlos A. Meriles, Henrike Heise, Dimitrios Sakellariou, Adam Moule
  • Publication number: 20030052677
    Abstract: A method and apparatus for ex-situ nuclear magnetic resonance spectroscopy for use on samples outside the physical limits of the magnets in inhomogeneous static and radio-frequency fields. Chemical shift spectra can be resolved with the method using sequences of correlated, composite z-rotation pulses in the presence of spatially matched static and radio frequency field gradients producing nutation echoes. The amplitude of the echoes is modulated by the chemical shift interaction and an inhomogeneity free FID may be recovered by stroboscopically sampling the maxima of the echoes. In an alternative embodiment, full-passage adiabatic pulses are consecutively applied. One embodiment of the apparatus generates a static magnetic field that has a variable saddle point.
    Type: Application
    Filed: August 13, 2002
    Publication date: March 20, 2003
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Alexander Pines, Carlos A. Meriles, Henrike Heise, Dimitrios Sakellariou, Adam Moule