A comparative study on chirped-pulse upconversion and direct multichannel MCT detection
Please always quote using this URN: urn:nbn:de:bvb:20-opus-111334
- A comparative study is carried out on two spectroscopic techniques employed to detect ultrafast absorption changes in the mid-infrared spectral range, namely direct multichannel detection via HgCdTe (MCT) photodiode arrays and the newly established technique of chirped-pulse upconversion (CPU). Whereas both methods are meanwhile individually used in a routine manner, we directly juxtapose their applicability in femtosecond pump-probe experiments based on 1 kHz shot-to-shot data acquisition. Additionally, we examine different phase-matchingA comparative study is carried out on two spectroscopic techniques employed to detect ultrafast absorption changes in the mid-infrared spectral range, namely direct multichannel detection via HgCdTe (MCT) photodiode arrays and the newly established technique of chirped-pulse upconversion (CPU). Whereas both methods are meanwhile individually used in a routine manner, we directly juxtapose their applicability in femtosecond pump-probe experiments based on 1 kHz shot-to-shot data acquisition. Additionally, we examine different phase-matching conditions in the CPU scheme for a given mid-infrared spectrum, thereby simultaneously detecting signals which are separated by more than 200 cm−1.…
Author: | Johannes Knorr, Philipp Rudolf, Patrick Nuernberger |
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URN: | urn:nbn:de:bvb:20-opus-111334 |
Document Type: | Journal article |
Faculties: | Fakultät für Chemie und Pharmazie / Institut für Physikalische und Theoretische Chemie |
Language: | English |
Year of Completion: | 2013 |
Source: | Optics Express 21, 25 (2013), S. 30693 - 30706 |
DOI: | https://doi.org/10.1364/OE.21.030693 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 541 Physikalische Chemie |
Tag: | CCD, charge-coupled device; Lithium niobate; Ultrafast spectroscopy; Upconversion; infrared spectroscopy |
Release Date: | 2015/04/01 |
Collections: | Open-Access-Publikationsfonds / Förderzeitraum 2014 |
Licence (German): | Deutsches Urheberrecht |