Toward Cold Radical Chemistry with Cryogenic Buffer Gas Beams.

摘要

Creating cold molecular samples allows us to study chemical reactions that happen at temperatures.;characteristic of the interstellar medium. Additionally, cold environments can stabilize.;very reactive molecules like radicals, which can allow us to study difficult-to-observe reactions or.;intermediate states in the reaction process. Cryogenic buffer-gas beams (CBGB) have gained popularity.;as bright, low temperature molecular sources for spectroscopy and reaction studies. We.;have determined a method for efficiently loading a signicant fraction of these new sources into a.;traveling-wave Stark decelerator, which uses time-varying inhomogeneous electric fields to decelerate.;polar molecules. We have also combined a CBGB with the decades-old technology of matrix.;isolation to create matrix isolated molecule samples, to help us achieve the goals of characterizing.;this new source and of investigating interactions of cold molecules .