Issue |
EPJ Web of Conferences
Volume 5, 2010
API'09 - First NanoCharM Workshop on Advanced Polarimetric Instrumentation
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|
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Article Number | 03002 | |
Number of page(s) | 1 | |
Section | Measurement of circular dichroism and birefringence | |
DOI | https://doi.org/10.1051/epjconf/20100503002 | |
Published online | 02 June 2010 |
https://doi.org/10.1051/epjconf/20100503002
Transient vibrational circular dichroism spectrometer: technical development
Physikalich-Chemisches Institut, 8057, Zurich,
Switzerland
We recently reported the first measurements of transient VCD in the C-H-stretch region following visible excitation of cobalt(-)-spartein complex (Co(sp)Cl2) with picosecond time resolution [1]. This poster presents the detailed description of the setup based on the synchronization of a femtosecond laser system with a photo elastic modulator [2]. A very precise control of the probe pulse polarization is a requirement to avoid linear dichroism artefacts. This is particularly important in crossed polarizer “quasi-null” technique which can be used to significantly enhance chiral signals [3].
© Owned by the authors, published by EDP Sciences, 2010
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