Qisheng Chen

Title: Innovations of Qisheng Chen in Ultraviolet Detection

Introduction

Qisheng Chen is an accomplished inventor based in Lino Lakes, Minnesota. He has made significant contributions to the field of ultraviolet detection through his innovative work on Schottky barrier detectors. His expertise in this area has led to the development of advanced technologies that enhance the capabilities of ultraviolet detection systems.

Latest Patents

Qisheng Chen holds a patent for "Schottky barrier detectors for visible-blind ultraviolet detection." This invention focuses on the fabrication and characterization of vertical geometry transparent Schottky barrier ultraviolet detectors based on n.sup.- /n.sup.+ -GaN and AlGaN structures grown over sapphire substrates. The patent details the creation of mesa geometry devices with varying active areas, which were characterized for spectral responsivity, speed, and noise characteristics. Additionally, the invention includes the fabrication and characterization of an 8.times.8 Schottky barrier photodiode array on GaN, featuring a pixel size of 200 µm by 200 µm.

Career Highlights

Qisheng Chen is currently associated with Apa Optics, Inc., where he continues to push the boundaries of optical technology. His work has been instrumental in advancing the understanding and application of Schottky barrier detectors in various fields.

Collaborations

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Conclusion

Qisheng Chen's innovative contributions to ultraviolet detection through his patented technologies demonstrate his expertise and commitment to advancing optical science. His work continues to influence the field and pave the way for future innovations.