TY  - JOUR
A1  - Knorr, Johannes
A1  - Rudolf, Philipp
A1  - Nuernberger, Patrick
T1  - A comparative study on chirped-pulse upconversion and direct multichannel MCT detection
N2  - 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-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.
KW  - Ultrafast spectroscopy
KW  - Upconversion
KW  - infrared spectroscopy
KW  - Lithium niobate
KW  - CCD, charge-coupled device
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-111334
ER  -