Physics and Astronomy Colloquium Series

Next Seminar

Thurs, April 2, 2015

Dr. Nicolas Douguet

UC Davis

"Electron-impact Induced Chemistry in Plasmas, Astrophysics and Biophysics"


The theoretical description of collision processes involving molecules, electrons and photons is essential to model important environments, such as planetary atmospheres, technological plasmas, human cells and interstellar clouds. In this talk, I will give an overview of the recent advances in our understanding of the dissociation of polyatomic ions and neutral molecules in collision with low-energy electrons. The various aspects of the recombination/attachment mechanisms and the dissociation dynamics will be introduced with the associated theoretical models. It will be shown that several experimental measurements can now be explained theoretically, even though many challenges remain. Finally, I will discuss processes involving light-molecule interactions and related to the formation/destruction of the cosmic carbon-chain negative ions recently discovered in interstellar clouds.


The Physics and Astronomy Colloquium Series is open to all members of the university. Unless otherwise noted, talks are held on Thursday afternoons at 4:00-5:20 in Mendocino 1015. Schedule is regularly updated as dates, titles, and abstracts are received. Please check back often. To receive updates about the Colloquium Series, please join our Events Mailing List. For past semesters' series, see our archive.

Spring 2015 Semester Schedule

February 5, 2015
Dr. Seth Hillbrand
Sacramento State
"Sub-millimeter Cosmology and the Origins of the Universe"

February 10, 2015 (Tuesday)
Dr. Michael Ray
Union College
"The Super World of Superfluids"

February 12, 2015
Dr. Nathan Dawson
Case Western Reserve University
"Manipulating Light with Organics: Emitters, Harvesters, and More..."

February 26, 2015
Dr. Zachary Smith
UC Davis
"Measure Smarter Not Harder:  Optical Instrumentation for Measurement of Human Blood"

March 3, 2015 (Tuesday)
Dr. Tia Miceli
New Mexico State
"Uncovering Neutrino Mysteries using Liquid Argon"

March 5, 2015
Dr. Mikkel Jensen
Harvard University
"Probing Mechanics of Intracellular Networks Using Model Systems"

March 12, 2015
Dr. Samantha Fonseca
UC Davis
"Imaging the Structure of Molecules Using Molecular Frame Photoelectron Angular Distribution (MFPADs)"

April 2, 2015
Dr. Nicolas Douguet
UC Davis
"Electron-impact Induced Chemistry in Plasmas, Astrophysics and Biophysics"

April 9, 2015
Robby Beard and Thor Barrera
Senior Project Talks

April 16, 2015
Prof. Jennie Guzman
California State University, East Bay
Topic: Laser Cooled Atoms

April 23, 2015
Curtis Castrapel - Facebook
Henry Garcia - Pixar Animation Studios
Vickie Brandt - Radiological Health Branch (State of CA)
Alumni Industry Panel

May 7, 2015
Senior Project Talks

May 14, 2015
Senior Project Talks