Samuel J Holmes

Title: The Innovations of Samuel J. Holmes

Introduction

Samuel J. Holmes is a notable inventor based in Redondo Beach, California. He has made significant contributions to the field of optical technology, holding a total of 2 patents. His work primarily focuses on advancements in laser gyroscopes and optical coatings.

Latest Patents

Holmes' latest patents include the "Ring laser gyro and magnetic mirror therefor" and a "Method of reducing optical coating absorptance." The ring laser gyro patent describes a laser gyroscope that is formed as a sealed, unitary assembly of mirrors, which are optically contacted to a monolithic gyro block. This innovative design eliminates the need for Brewster windows to isolate the laser plasma from the mirrors. The mirrors are crafted with hard multilayer dielectric films that can withstand plasma exposure. Additionally, the magnetic mirror utilizes the transverse Kerr effect to separate the frequencies of counter-propagating beams, preventing lock-in. This design includes a Ni-Fe alloy layer and a thin iron or iron alloy layer, which together form a rotationally switchable Kerr effect combination. The magnetic field for switching is generated by an electric current developed in two pairs of orthogonally disposed wires embedded in the substrate. Furthermore, a specially designed multilayer dielectric stack is configured to suppress S mode oscillation, limiting the gyro to P mode operation.

The second patent, the "Method of reducing optical coating absorptance," involves directing a laser or other light beam onto an optical substrate while an optical coating is being vacuum deposited. This method aims to achieve a reduced absorptance of the coating, with the substrate potentially being heated electrically to enhance the process. The result is thin film optical coatings that exhibit substantially lowered absorptance.

Career Highlights

Samuel J. Holmes is associated with Northrop Corporation, where he has contributed to various innovative projects. His expertise in optical technology has positioned him as a valuable asset within the company.

Collaborations

Holmes has worked alongside notable colleagues, including Wah L. Lim and V. Warren Biricik. Their collaborative efforts have further advanced the field of optical technology.

Conclusion

Samuel J. Holmes is a distinguished inventor whose work in laser gyroscopes and optical coatings has made a significant impact in the field. His innovative patents and contributions to Northrop Corporation highlight his dedication to advancing technology.