Title

Identification And Role Of Two-Photon Excited States In A Π-Conjugated Polymer

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. © 1994 The American Physical Society.

Publication Date

1-1-1994

Publication Title

Physical Review Letters

Volume

73

Issue

4

Number of Pages

597-600

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevLett.73.597

Socpus ID

0028463824 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028463824

This document is currently not available here.

Share

COinS