A tilted pulse-front setup for femtosecond transient grating spectroscopy in highly non-collinear geometries
- We demonstrate a tilted pulse-front transient grating (TG) technique that allows to optimally utilize time resolution as well as TG line density while probing under grazing incidence as typically done in extreme ultraviolet (EUV) or soft x-ray (SXR) experiments. Our optical setup adapts the pulse front tilt of the two pulses that create the TG to the grazing incident pulse. We demonstrate the technique using all 800 nm femtosecond laser pulses for TG generation on a vanadium dioxide film. We probe that grating via diffraction of a third 800 nm pulse. The time resolution of 90 fs is an improvement by a factor of 30 compared to our previous experiments on the same system. The scheme paves the way for EUV and SXR probing of optically induced TGs on any material.
| Author details: | A. Battistoni, H. A. Dürr, Markus GührORCiDGND, Thomas J. A. WolfORCiD |
|---|---|
| DOI: | https://doi.org/10.1088/2040-8986/aad60a |
| ISSN: | 2040-8978 |
| ISSN: | 2040-8986 |
| Title of parent work (English): | Journal of optics |
| Publisher: | IOP Publ. Ltd. |
| Place of publishing: | Bristol |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2018/08/10 |
| Publication year: | 2018 |
| Release date: | 2021/10/11 |
| Tag: | pulse front matching; transient grating spectroscopy; ultrafast spectroscopy |
| Volume: | 20 |
| Issue: | 9 |
| Number of pages: | 5 |
| Funding institution: | AMOS program within the Chemical Sciences, Geosciences and Biosciences Division of the Office of Basic Energy Sciences, Office of Science, US Department of EnergyUnited States Department of Energy (DOE); Lichtenberg Professorship from the Volkswagen foundation |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Peer review: | Referiert |
| Publishing method: | Open Access / Green Open-Access |
