Location History:
- Fleury d'Aude, CA (1992)
- Ottawa, CA (1991 - 1995)
Company Filing History:
Years Active: 1991-1995
Title: The Innovations of Francoise Chatenoud
Introduction
Francoise Chatenoud is a prominent inventor based in Ottawa, Canada. She has made significant contributions to the field of semiconductor technology, particularly in the area of nonlinear optics. With a total of 5 patents to her name, her work has garnered attention for its innovative approaches and practical applications.
Latest Patents
One of her latest patents focuses on second-harmonic generation in semiconductor heterostructures. This patent describes quasi-phase matched (QPM) second-harmonic (SH) generation in reflection geometry. The SH intensity can be significantly enhanced by spatially modulating the optical properties of the nonlinear medium. This type of quasi-phase matching is demonstrated using an Al.sub.0.8 Ga.sub.0.2 As/GaAs heterostructure designed for .lambda.=1.06 .mu.m incident light. The SH light intensity generated in reflection from the heterostructure is enhanced 70 times relative to the SH response of a homogeneous GaAs wafer. Additionally, a Fabry-Perot resonant cavity design employs this structure to create thin films with extremely high SH generation efficiencies, which is particularly relevant for vertical cavity surface emitting lasers (VCSELs). Another notable patent involves coherent phase and frequency detection using sum-frequency mixing. In this invention, a plurality of signals are mixed in a nonlinear waveguide to generate a near-field sum frequency output pattern. The near-field output pattern is monitored for changes that correspond to variations in the phase relationship between the input signals.
Career Highlights
Francoise Chatenoud is currently affiliated with the National Research Council of Canada, where she continues to push the boundaries of research and innovation. Her work has not only advanced the field of optics but has also contributed to the development of new technologies that have practical applications in various industries.
Collaborations
Throughout her career, Chatenoud has collaborated with notable colleagues, including Richard J Normandin and Robin L Williams. These collaborations have further enriched her research and have led to significant advancements in her field.
Conclusion
Francoise Chatenoud's contributions to semiconductor technology and nonlinear optics exemplify the spirit of innovation. Her patents reflect a deep understanding of complex scientific principles and a commitment to advancing technology. As she continues her work at the National Research Council of Canada,