Gregory O Gheen

Title: **Innovative Contributions of Gregory O. Gheen in Optical Processing**

Introduction

Gregory O. Gheen is an accomplished inventor based in Pasadena, California. With a remarkable portfolio of two patents, Gheen has made significant strides in the field of optical processing, particularly through the use of compound semiconductors.

Latest Patents

Gheen's latest patents showcase his expertise in optical processing utilizing III-V and II-VI compound semiconductors. One notable invention involves optical processing using photorefractive GaAs and other compound semiconductor crystals in a four-wave mixing configuration. This innovation has potential applications in areas such as spatial light modulation, phase conjugation, correlation, convolution, edge enhancement, and matrix multiplication. In particular embodiments, Gheen demonstrates optical processing, matrix multiplication, and integrated semiconductor optical information processors. By integrating semiconductors with optical information processors, a spatial light modulator is fabricated on the surface of a compound semiconductor crystal, resulting in an advanced device. This device effectively transfers electrical data into an optical format, employing the photorefractive effect for subsequent data processing.

Another patent focuses on spatial light modulation in III-V single crystals, like gallium arsenide. This process leverages the photorefractive effect to achieve modulation of the input beam's intensity by utilizing polarization rotation created through beam coupling. The setup allows for information on a control beam to be transferred to an input beam, producing an output beam that exhibits modulated intensity.

Career Highlights

Throughout his career, Gregory O. Gheen has been affiliated with prestigious institutions, including the California Institute of Technology and the United States of America as represented by the Administrator of NASA. His work has significantly contributed to advancements in optical processing technologies.

Collaborations

Gheen has collaborated with notable colleagues such as Li-Jen Cheng and Afshin Partovi, pooling their expertise to further innovation in the field. Their collective efforts have shed light on new methodologies and applications for optical data processing.

Conclusion

Gregory O. Gheen's inventive spirit continues to influence the domains of optical processing and semiconductor technology. His patents reflect a deeper understanding of complex optical processes, underscoring his role as a significant contributor in his field. As he continues to innovate, Gheen's work is anticipated to have lasting impacts on various industries reliant on optical technologies.