University of Illinois Urbana-Champaign

TIME-RESOLVED NUCLEAR FORWARD SCATTERING: BRINGING PUMP-PROBE SPECTROSCOPY INTO THE GAMMA-RAY REGIME

Hayes, Dugan

Content Files
7244.pdf
WH09_1.pptx

Permalink

https://hdl.handle.net/2142/122694

Description

Title
TIME-RESOLVED NUCLEAR FORWARD SCATTERING: BRINGING PUMP-PROBE SPECTROSCOPY INTO THE GAMMA-RAY REGIME
Author(s)
Hayes, Dugan
Contributor(s)
  • Young, Benjamin T.
  • March, Anne Marie
  • Doumy, Gilles
  • Hu, Michael Y.
  • Antolini, Cali
Issue Date
2023-06-21
Keyword(s)
Mini-symposium: Spectroscopy at Large-scale Facilities
Abstract
Over the last several decades, the development of time- and frequency-domain nuclear resonance spectroscopies that take advantage of the tunability and pulsed nature of synchrotron radiation at storage ring facilities has greatly expanded both the portfolio of routinely accessible nuclei and the range of material properties that may be probed via the Mössbauer effect. Continuing in this tradition, we recently developed a method to probe the photophysical dynamics of solid-state materials using a pump-probe implementation of time-domain Mössbauer spectroscopy that we refer to as time-resolved nuclear forward scattering (TRNFS). After introducing this novel technique and discussing its challenges, I will present our measurements of tin(II) oxide to showcase the power and unique opportunities of TRNFS. In particular, I will demonstrate how variable repetition rate TRNFS may be used to distinguish between electronic and thermal contributions to laser-induced difference spectra and how small contributions to the quantum beating signal originating from the photoexcited material may be clearly identified using reference scatterers.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Genre of Resource
Conference Paper / Presentation
Language
eng
Handle URL
https://hdl.handle.net/2142/122694
DOI
https://doi.org/10.15278/isms.2023.7244

Owning Collections

Abstracts & Presentations - 2023 International Symposium on Molecular Spectroscopy PRIMARY