## Files in this item

FilesDescriptionFormat

application/vnd.openxmlformats-officedocument.presentationml.presentation

962274.pptx (5MB)
PresentationMicrosoft PowerPoint 2007

application/pdf

2622.pdf (20kB)
AbstractPDF

application/pdf

ISMS-2017_Zhenhui.pdf (1MB)
PresentationPDF

## Description

 Title: TIME-RESOLVED MEASUREMENT OF THE C2 1AΠu STATE POPULATION FOLLOWING PHOTODISSOCIATION OF THE S1 STATE OF ACETYLENE USING FREQUENCY-MODULATION SPECTROSCOPY Author(s): Du, Zhenhui Contributor(s): Field, Robert W; Jiang, Jun Subject(s): Mini-symposium: Multiple Potential Energy Surfaces Abstract: The excited-state population of the C$_2$ $^1APi_u$ state produced in photolysis of S$_1$ acetylene was investigated. The pulsed UV laser (216.5 nm) excites acetylene into $J=8$ $e$-symmetry level of the S$_1$ $3^4$ level, and subsequently dissociates the S$_1$ acetylene into C$_2$ fragments. A frequency-modulated near-infrared probe laser beam is used to detect the C$_2$ population in the $^1APi_u$ state. The sensitivity and the fast response of the experimental setup has been verified by I$_2$ excited state measurements. The setup will be used to record the C$_2$ $A-X$ transitions, which are fitted with a Voigt function. The derived lineshape and line intensities will be analyzed, and we will use the information to calculate the $A$ state populations of C$_2$ and map the populations with time-resolution following the photolysis. Issue Date: 6/20/2017 Publisher: International Symposium on Molecular Spectroscopy Citation Info: APS Genre: CONFERENCE PAPER/PRESENTATION Type: Text Language: English URI: http://hdl.handle.net/2142/96990 DOI: 10.15278/isms.2017.TB02 Date Available in IDEALS: 2017-07-272018-01-29
﻿