Columbia University

Rohit Chatterjee

Xugang Zhang

Chee Wei Wong

Xiaochun Li

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. The digital processing device is coupled to the optical detector and determines at least one of the thermal characteristics and mechanical the characteristics of the workpiece based on the electronic signal.

Growing community of inventors

Chennai, India

Rohit Chatterjee