Navigation auf zora.uzh.ch

Search ZORA

ZORA (Zurich Open Repository and Archive)

High-sensitivity pump-probe spectroscopy with a dual-comb laser and a PM-Andi supercontinuum

Gruber, Christoph; Pupeikis, Justinas; Camenzind, Sandro L; Willenberg, Benjamin; Camargo, Franco V A; Lang, Lukas; Hamm, Peter; Rampur, Anupamaa; Heidt, Alexander; Phillips, Christopher R; Cerullo, Giulio; Keller, Ursula (2024). High-sensitivity pump-probe spectroscopy with a dual-comb laser and a PM-Andi supercontinuum. Optics letters, 49(22):6445.

Abstract

Amplifier-based pump-probe systems, while versatile, often suffer from complexity and low measurement speeds, especially when probing samples require low excitation fluences. To address these limitations, we introduce a pump-probe system that leverages a 60-MHz single-cavity dual-comb oscillator and an ultra-low noise supercontinuum. The setup can operate in equivalent time sampling or in programmable optical delay generation modes. We employ this system to study the wavelength-dependent excited-state dynamics of the non-fullerene electron acceptor Y6, a compound of interest in solar cell development, with excitation fluences as low as 1 nJ/cm2, well below the onset of nonlinear exciton annihilation effects. Our measurements reach a shot-noise limited sensitivity in differential transmission of 3.4·10-7. The results demonstrate the system's potential to advance the field of ultrafast spectroscopy.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Physical Sciences > Atomic and Molecular Physics, and Optics
Language:English
Date:15 November 2024
Deposited On:04 Feb 2025 18:49
Last Modified:05 Feb 2025 21:00
Publisher:Optical Society of America
ISSN:0146-9592
OA Status:Green
Publisher DOI:https://doi.org/10.1364/ol.538105
PubMed ID:39546692
Download PDF  'High-sensitivity pump-probe spectroscopy with a dual-comb laser and a PM-Andi supercontinuum'.
Preview
  • Content: Published Version
  • Language: English
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)

Metadata Export

Statistics

Citations

Dimensions.ai Metrics

Altmetrics

Downloads

1 download since deposited on 04 Feb 2025
1 download since 12 months
Detailed statistics

Authors, Affiliations, Collaborations

Similar Publications