Two-Photon Absorption And Two-Photon Circular Dichroism Of L-Tryptophan In The Near To Far Uv Region

Abstract

Herein we report on the first measurements of the two-photon absorption (TPA) spectrum of L-tryptophan in DMSO solution in the near to far UV region and the two-photon circular dichroism (TPCD) signal corresponding to a transition at 200 nm. We demonstrate the application of the Double L-scan technique in the near to far UV region to perform polarization dependent TPA measurements of chiral molecules. TPCD measurements below 400 nm reveal that chiral molecules in solution, such as tryptophan/DMSO, can undergo photochemical reactions in front of prolonged exposure to UV radiation.

Publication Date

1-1-2017

Publication Title

Chemical Physics Letters

Volume

684

Number of Pages

67-71

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.cplett.2017.06.028

Socpus ID

85021172950 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85021172950

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