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DTSTART;TZID=America/Los_Angeles:20231009T160000
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SUMMARY:Physical Chemistry Seminar 228: Mitchio Okumura
DESCRIPTION:Okumura Flyer \nTitle: Combs and Mirrors: Spectroscopic Studies of Radical Reactions Important in Air and Space \nAbstract: Trace gas phase free radicals play a central role in the chemistry of Earth and planetary atmospheres\, as well as the interstellar medium. Laboratory studies of their spectroscopy\, reaction dynamics and kinetics are important for accurate modeling of these environments. Experiments require high sensitivity\, time resolution\, and specificity to detect these reactive intermediates.  We have pursued advances in spectroscopic techniques using optical cavities and optical frequency combs to detect free radicals in the Mid-Infrared by direct absorption. I will discuss several examples of cavity ringdown\, direct frequency comb cavity-enhanced spectroscopy\, and Vernier comb spectroscopy and their applications to atmospheric kinetics. In addition\, I will present experiments using Uniform supersonic flows and LIF detection reveal new dynamical effects in low temperature radical kinetics.
URL:https://www.chemistry.ucla.edu/events/physical-chemistry-seminar-228-mitchio-okumura/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Physical Chemistry Seminar
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