Greetham, Gregory M, Clark, Ian P, Young, Benjamin et al. (4 more authors) (2020) Time-Resolved Temperature-Jump Infrared Spectroscopy at a High Repetition Rate. APPLIED SPECTROSCOPY. ISSN 0003-7028
Abstract
Time-resolved temperature-jump infrared absorption spectroscopy at a 0.5 to 1 kHz repetition rate is presented. A 1 kHz neodymium-doped yttrium aluminum garnet (Nd:YAG) laser pumping an optical parametric oscillator provided >70 µJ, 3.75 µm pump pulses, which delivered a temperature jump via excitation of the O-D stretch of a D2O solution. A 10 kHz train of mid-infrared probe pulses was used to monitor spectral changes following the temperature jump. Calibration with trifluoroacetic acid solution showed that a temperature jump of 10 K lasting for tens of microseconds was achieved, sufficient to observe fast processes in functionally relevant biomolecular mechanisms. Modeling of heating profiles across ≤10 µm path length cells and subsequent cooling dynamics are used to describe the initial <100 ns cooling at the window surface and subsequent, >10 µs cooling dynamics of the bulk solution.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Dates: |
|
Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 Apr 2020 10:00 |
Last Modified: | 16 Oct 2024 16:31 |
Published Version: | https://doi.org/10.1177/0003702820913636 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1177/0003702820913636 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:159226 |
Download
Filename: greetham_T_jump_paper_appl_spec_2.2.docx
Description: greetham T-jump paper appl spec 2.2