Wai Son Ko

Title: Innovations of Wai Son Ko

Introduction

Wai Son Ko is a prominent inventor based in Menlo Park, CA. He has made significant contributions to the field of optical resonators and nanotechnology. With a total of 3 patents, his work has garnered attention for its innovative approaches and applications.

Latest Patents

One of his latest patents is the "Nanopillar Optical Resonator." This invention discloses monolithically integrated optical resonators that promote a helically-propagating cavity mode. The design allows for significant reflection or total internal reflection at the interface of the nanopillar optical resonator and the substrate, even when their refractive indices are similar. This results in strong optical feedback and resonance within the nanopillar optical resonator.

Another notable patent is related to "Nanoneedle Plasmonic Photodetectors and Solar Cells." This disclosure presents a catalyst-free growth mode for defect-free Gallium Arsenide (GaAs)-based nanoneedles on silicon substrates. These nanoneedles feature a sharp tip, a wide base, and a tapered shape, making them ideal for integrating optoelectronic devices on silicon substrates. A specific application example includes a nanoneedle avalanche photodiode (APD) that achieves a high current gain of 265 with only an 8V bias.

Career Highlights

Wai Son Ko is affiliated with the University of California, where he continues to advance research in his field. His innovative work has positioned him as a key figure in the development of new technologies that leverage nanostructures for enhanced performance.

Collaborations

He has collaborated with notable colleagues such as Connie J Chang-Hasnain and Chih-Wei Chuang, contributing to a rich environment of innovation and research.

Conclusion

Wai Son Ko's contributions to the fields of optical resonators and nanotechnology exemplify the spirit of innovation. His patents reflect a commitment to advancing technology and enhancing the capabilities of optoelectronic devices.