Title

Polarization Dependent Two-Photon Absorption Spectroscopy On A Naturally Occurring Biomarker (Curcumin) In Solution: A Theoretical-Experimental Study

Abstract

We report on the theoretical-experimental analysis of the two-photon absorption (TPA) and two-photon circular-linear dichroism (TPCLD) spectra of (1E, 6E)-1, 7-bis(4-hydroxy-3-methoxyphenyl)-1, 6-heptadi-ene-3, 5-dione (curcumin) in Tetrahydrofuran (THF) solution. The measurement of the full TPA spectrum of this molecule reveals a maximum TPA cross-section at 740 nm, i.e. more than 10 times larger than the maximum reported in the literature at 800 nm for the application of curcumin in bioimaging. The TPCLD spectrum exposes the symmetry of the main excited-states involved in the two-photon excitation process. TD-DFT calculations support the experimental results. These outcomes are expected to expand the application of natural-occurring dyes in bioimaging. © 2013 Elsevier B.V. All rights reserved.

Publication Date

1-1-2013

Publication Title

Chemical Physics Letters

Volume

583

Number of Pages

160-164

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.cplett.2013.07.080

Socpus ID

84885578210 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84885578210

This document is currently not available here.

Share

COinS