Michael S Shumate

Title: Michael S. Shumate: Innovator in Optoacoustic Detection

Introduction

Michael S. Shumate is a notable inventor based in Pasadena, CA. He holds a total of 3 patents that showcase his contributions to the field of optoacoustic detection and radiation modulation. His innovative work has significant implications for gas analysis and various optical technologies.

Latest Patents

One of his latest patents is titled "Stark cell optoacoustic detection of constituent gases in sample." This invention implements an optoacoustic detector for gas analysis using Stark-effect cell modulation. The technology allows for switching a beam in and out of coincidence with a spectral line of a constituent gas, effectively eliminating the heating effect of laser energy in the cell as a source of background noise. By utilizing a multiline laser and linearly sweeping the DC bias voltage, it is possible to obtain a spectrum that determines the combination of excited constituents and their concentrations in parts per million.

Another significant patent is the "Method and apparatus for Doppler frequency modulation of radiation." This invention describes a method for frequency modulating radiation, such as from a laser, for use in optoacoustic detectors and similar devices. It employs two oppositely reciprocating cat's-eye retroreflectors to Doppler modulate the radiation. The design allows for smooth operation at many Hertz while achieving greater Doppler shifts with the same reciprocating motion of the retroreflectors.

Career Highlights

Throughout his career, Michael S. Shumate has worked with prestigious institutions, including the California Institute of Technology. His work has contributed to advancements in optical technologies and gas detection methods.

Collaborations

Michael has collaborated with notable individuals such as Jack S. Margolis and James C. Fletcher. These collaborations have further enriched his innovative endeavors and expanded the impact of his inventions.

Conclusion

Michael S. Shumate's contributions to the field of optoacoustic detection and radiation modulation highlight his role as a significant inventor. His patents reflect a commitment to advancing technology in gas analysis and optical systems.