Sumanth Kaushik

Title: Sumanth Kaushik: Innovator in Optical Measurement Technologies

Introduction

Sumanth Kaushik is a notable inventor based in Albuquerque, NM (US). He has made significant contributions to the field of optical measurement technologies, holding a total of 2 patents. His work focuses on advancing methods for critical dimension measurements and optical filtering.

Latest Patents

Sumanth's latest patents include a "Near field optical probe for critical dimension measurements." This invention features a resonant planar optical waveguide probe designed to measure critical dimensions on an object in the range of 100 nm and below. The optical waveguide consists of a central resonant cavity flanked by Bragg reflector layers, with input and output means at either end. Light is supplied by a narrow bandwidth laser source, and the light resonating in the cavity creates an evanescent electrical field. As the object with the structures to be measured is translated past the resonant cavity, the refractive index contrasts presented by the structures perturb the field, causing variations in the intensity of the light in the cavity. The topography of the structures is determined from these variations.

Another significant patent is the "Optical filter including a sub-wavelength periodic structure and method." This optical filter comprises a dielectric layer formed within a resonant optical cavity, with the dielectric layer containing a sub-wavelength periodic structure that defines, at least in part, a wavelength for the transmission of light through the resonant optical cavity. The sub-wavelength periodic structure can be created by either removing material from the dielectric layer or altering the composition of the layer. Different portions of the dielectric layer can be patterned to form one or more optical interference filter elements with varying light transmission wavelengths. This optical filter has applications in spectrometry, colorimetry, and chemical sensing.

Career Highlights

Sumanth Kaushik is currently employed at Sandia Corporation, where he continues to innovate in the field of optical technologies. His work has garnered attention for its potential applications in various scientific and industrial fields.

Collaborations

Sumanth collaborates with Brian R Stallard, contributing to advancements in their shared field of expertise.

Conclusion

Sumanth Kaushik is a prominent inventor whose work in optical measurement technologies is paving the way for future innovations. His patents reflect a deep understanding of the complexities involved in optical systems