Patents by Inventor Rohitt Chatterjee

Rohitt Chatterjee 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: 20140158871
    Abstract: Systems and methods for sensing properties of a workpiece and embedding a photonic sensor in metal are disclosed herein. In some embodiments, systems for sensing properties of a workpiece include an optical input, a photonic device, an optical detector, and a digital processing device. The optical input provides an optical signal at an output of the optical input. The photonic device is coupled to the workpiece and to the output of the optical input. The photonic device generates an output signal in response to the optical signal, wherein at least one of an intensity of the output signal and a wavelength of the output signal depends on at least one of thermal characteristics and mechanical characteristics of the workpiece. The optical detector receives the output signal from the photonic device and is configured to generate a corresponding electronic signal.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 12, 2014
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Chee Wei Wong, Rohitt Chatterjee, Xiaochun Li, Xugang Zhang