Title

Four-photon absorption in the single-crystal polymer bis(paratoluene) sulfonate

Authors

Authors

H. Shim; M. G. Liu; C. K. Hwangbo;G. I. Stegeman

Comments

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Abbreviated Journal Title

Opt. Lett.

Keywords

P-TOLUENE SULFONATE; OPTICAL NONLINEARITIES; CONJUGATED POLYMER; POLYDIACETYLENE; SPECTROSCOPY; INDEX; Optics

Abstract

Strong four-photon absorption corresponding to Im[chi((tau))((-)omega; w, (-)omega, omega, (-)omega, omega, (-)omega, omega)] has been measured for the first time to the authors' knowledge with 100-fs pulses at 1600 nm in the single-crystal polymer poly[bis(p-toluene sulfonate)] of 2,4-hexadiyne-1,6-diol. The transition involved is from the even-symmetry ground state into the vibronic subband of the dominant, even-symmetry, excited two-photon state at an energy of 2.7 eV. (C) 1998 Optical Society of America.

Journal Title

Optics Letters

Volume

23

Issue/Number

6

Publication Date

1-1-1998

Document Type

Article

Language

English

First Page

430

Last Page

432

WOS Identifier

WOS:000072700700010

ISSN

0146-9592

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