Title

Identification And Role Of 2-Photon-Excited States In A Pi-Conjugated Polymer

Authors

Authors

B. Lawrence; W. E. Torruellas; M. Cha; M. L. Sundheimer; G. I. Stegeman; J. Meth; S. Etemad;G. Baker

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

NONLINEAR OPTICAL SPECTROSCOPY; SINGLE-CRYSTALS; POLYDIACETYLENE; ABSORPTION; SPECTRUM; FILMS; LIGHT; Physics, Multidisciplinary

Abstract

We have measured the full two-photon absorption (TPA) spectrum in the transparency range of single-crystal polydiacetylene paratoluene-sulfonate (PTS) using z scan. The spectrum consists of three well-defined two-photon excited states superimposed on a continuum of even-parity states. Comparison of the TPA and the one-photon absorption spectra identifies a two-photon accessible state as the lowest excited state of PTS. The accompanying dispersion in the intensity-dependent refractive index coefficient n2 is also reported.

Journal Title

Physical Review Letters

Volume

73

Issue/Number

4

Publication Date

1-1-1994

Document Type

Article

DOI Link

http://dx.doi.org/10.1103/PhysRevLett.73.597

Language

English

First Page

597

Last Page

600

WOS Identifier

WOS:A1994NZ23700023

ISSN

0031-9007

Recommended Citation

"Identification And Role Of 2-Photon-Excited States In A Pi-Conjugated Polymer" (1994). Faculty Bibliography 1990s. 2956.
https://stars.library.ucf.edu/facultybib1990/2956