Transient Circular Dichroism Measurement of the Excited Triplet State of Pristine Hexahelicene in Solution at Room Temperature

Multiscale conformational dynamics probed by time‐resolved circular dichroism from seconds to picoseconds

“…26 In other cases, quantum chemical calculations can help interpreting the TRCD measurements. 27,28 This issue is of primary importance for single-wavelength experiments but will be less so when broadband measurements can be performed routinely. Indeed, comparing the full CD spectra before and after photoexcitation and using standard techniques such as SVD will be very informative in future experiments.…”

“…For further discussion, see [26]. In other cases, quantum chemical calculations can help interpreting the TRCD measurements [27,28]. This issue is of primary importance for single-wavelength experiments, but will be less so when broadband measurements can be performed routinely.…”

Time-resolved circular dichroism of excitonic systems: theory and experiment on an exemplary squaraine polymer

“…[35][36][37][38][39][40] Performing TRCD with broadband visible pulses is an additional challenge typically realized in either of the following measurement modalities: [41][42][43][44][45] (i) an ellipsometric measurement detects the change in ellipticity of the probe beam aer it passed the chiral sample; (ii) the differential absorption method detects the difference in absorption of le-and right-circularly polarized light. Generating circularly polarized broadband probe pulses is possible either using a Pockels cell or a photoelastic modulator [46][47][48][49][50] with the options to polarize a single-wavelength seed pulse which is then transformed into a white-light continuum [51][52][53] or to create circular polarization of white-light continuum itself. In our own work, we developed a technique to perform polarization mirroring 54 in order to get a mirror image of one initial circularly polarized white-light pulse.…”