Ultrabroadband transient absorption spectroscopy with sub-25 µOD sensitivity and double differential scatter and noise rejection
Abstract
Transient absorption spectroscopy is a powerful technique for studying charge transfer, energy conversion, and electron-phonon coupling in an array of chemical and material systems on the femtosecond to nanosecond timescales. Here, we describe a state-of-the-art ultrabroadband transient absorption spectrometer for solid samples, which achieves sub-50 fs time resolution and sub-25 µOD sensitivity across a wide spectral range, from 350 to 900 nm. Combined with suppression of pump pulse scatter, the high signal-to-noise ratio of this spectrometer allows investigating previously inaccessible phenomena in well studied samples, such as electron-phonon coupling signatures in transition metal oxides.
Fields of Study & Subjects
Spectroscopy and Laser Applications
Spectroscopy and Quantum Chemical Studies
Spectroscopy Techniques in Biomedical and Chemical Research
Publication details
- Journal / source
- Optics Express
- Publisher
- Optica Publishing Group
- Volume
- 34
- Issue
- 12
- Pages
- 22393–22393
- Publication date
- 19 May 2026
- Language
- EN