Glenn A Clarke

Title: Glenn A. Clarke: Innovator in Optical Coating Technologies

Introduction

Glenn A. Clarke is a notable inventor based in Ottawa, Canada. He has made significant contributions to the field of optical coatings, particularly through his innovative methods for depositing multilayer coatings. With a total of 2 patents, Clarke's work has advanced the technology used in various optical applications.

Latest Patents

Clarke's latest patents include a "Multi-layer reactive sputtering method with reduced stabilization time." This method describes a process for depositing complex optical multilayer coatings on substrates. The coating consists of multiple layers made from at least two different material types. These layers are sequentially deposited in a deposition chamber through reactive deposition, preferably sputtering. The thickness of the deposited layers is determined during the deposition process by taking optical measurements and fitting theoretical values derived from a model to the actual values obtained from these measurements. A process variable is continually controlled to ensure the homogeneity of the deposited layers, allowing for valid thickness determinations based on the theoretical model.

Another significant patent is the "Sputtering method and apparatus with optical monitoring." In this method, thin films are sputtered onto a substrate placed below a sputtering source assembly in a vacuum chamber. A light beam is projected onto the substrate, passing through an optical passage in the sputtering source assembly. This setup allows for accurate monitoring of the growth of the sputtered film at near-normal angles of incidence.

Career Highlights

Glenn A. Clarke is affiliated with the National Research Council of Canada, where he continues to push the boundaries of optical coating technologies. His work has been instrumental in developing methods that enhance the efficiency and effectiveness of multilayer coatings.

Collaborations

Clarke has collaborated with notable colleagues, including Brian T. Sullivan and Takayuki Akiyama. These partnerships have contributed to the advancement of research and innovation in the field of optical coatings.

Conclusion

Glenn A. Clarke's contributions to the field of optical coatings through his innovative patents and collaborations highlight his role as a leading inventor in this specialized area. His work continues to influence advancements in optical technologies.