Location History:
- Los Alamos, NM (US) (2002)
- San Diego, CA (US) (2004)
Company Filing History:
Years Active: 2002-2004
Title: Yongxuan Su: Innovator in Plasma and Gas Detection Technologies
Introduction
Yongxuan Su is a notable inventor based in San Diego, California. He has made significant contributions to the fields of plasma technology and gas detection. With a total of 2 patents, his work showcases innovative approaches to molecular light emission and ammonia detection.
Latest Patents
One of Yongxuan Su's latest patents is a "Pulsed, atmospheric pressure plasma source for emission spectrometry." This invention describes a low-power, portable molecular light emission generator that utilizes atmospheric pressure pulsed-plasma for molecular fragmentation and excitation. The average power required for its operation ranges from 0.02 W to 5 W. The optical emission spectra produced by this pulsed plasma source exhibit significant differences compared to those obtained from higher power direct current (dc) discharge. For instance, strong CH emission at 431.2 nm is prominently observed, while intense CN emission at 383-388 nm is weak in most cases. This apparatus can detect dimethylsulfoxide at 200 ppb using helium as the plasma gas, providing a reliable method for analyzing samples in conjunction with gas chromatography.
Another significant patent is the "Polyaniline-based optical ammonia detector." This invention employs electronic absorption spectroscopy of a polyaniline film to quantitatively detect ammonia gas. The optical ammonia gas detector demonstrates a response time of less than 15 seconds and a regeneration time of under 2 minutes at room temperature. It has a detection limit of 1 ppm (v/v) for ammonia, with a linear dynamic range from 180 ppm to 18,000 ppm.
Career Highlights
Yongxuan Su is affiliated with the University of California, where he continues to advance research in innovative detection technologies. His work has garnered attention for its practical applications in environmental monitoring and safety.
Collaborations
Yongxuan Su has collaborated with notable colleagues, including Yixiang Duan and Zhe Jin, contributing to the advancement of research in his field.
Conclusion
Yongxuan Su's innovative patents in plasma and gas detection technologies highlight his significant contributions to scientific research. His work not only enhances our understanding of molecular interactions but also provides practical solutions for real-world applications.