{"280591":{"#nid":"280591","#data":{"type":"event","title":"Ultrafast Molecular Dynamics probed by Vacuum Ultraviolet Pulses","body":[{"value":"\u003Ch5\u003ESchool of Physics Colloquium Series: Dr. James Cryan, Lawrence Berkeley National Laboratory \u003Cbr \/\u003E\u003C\/h5\u003E\u003Cp\u003EI will present time-resolved measurements of the relaxation dynamics, in a small molecular system, following ultraviolet (UV) photoexcitation.\u0026nbsp;We probe these excitations through photoionization and velocity map imaging (VMI) spectroscopy. Vacuum and extreme ultraviolet (VUV\/XUV) pump and probe pulses are created by exploiting strong-field high harmonic generation (HHG) from our state-of-the-art 30 mJ, 1 kHz laser system. Three dimensional photoelectron and photoion momentum images recorded with our VMI spectrometer reveal non-Born Oppenheimer dynamics in the vicinity of a conical intersection, and allow us track the state of the system as a function of time. I will also present a series of experiments developing techniques for studying molecular dynamics at fourth generation, free electron laser (FEL), light sources. \u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Ultrafast Molecular Dynamics probed by Vacuum Ultraviolet Pulses"}],"uid":"27664","created_gmt":"2014-03-04 14:06:44","changed_gmt":"2016-10-08 02:07:01","author":"Alison Morain","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2014-03-10T20:00:00-04:00","event_time_end":"2014-03-10T21:00:00-04:00","event_time_end_last":"2014-03-10T21:00:00-04:00","gmt_time_start":"2014-03-11 00:00:00","gmt_time_end":"2014-03-11 01:00:00","gmt_time_end_last":"2014-03-11 01:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"126011","name":"School of Physics"}],"categories":[],"keywords":[{"id":"88181","name":"Ultrafast Molecular Dynamics"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:alison.morain@physics.gatech.edu\u0022\u003Ealison.morain@physics.gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}