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Proceedings Paper

Excited-state nonlinear optics and enhancement mechanisms for nonresonant processes
Author(s): James Randy Heflin; Qihou L. Zhou; King-Young Wong; O. Zamani-Khamiri; Anthony F. Garito
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Paper Abstract

A general enhancement mechanism is reviewed for nonlinear optical processes originating from real population of electronic excited states. The nonresonant third order optical susceptibility y1(-w4;wi,w2,w3) of quasi-one dimensional conjugated linear chains can be enhanced by orders of magnitude, or even change sign, when the first (S1), or second (52), electronic excited state is optically pumped and then populated for times suitably long to perform nonresonant measurements of y1(-w4; w1 , w2,w3) at frequencies different from the resonant pump frequency.

Paper Details

Date Published: 1 December 1990
PDF: 9 pages
Proc. SPIE 1337, Nonlinear Optical Properties of Organic Materials III, (1 December 1990); doi: 10.1117/12.22945
Show Author Affiliations
James Randy Heflin, Univ. of Pennsylvania (United States)
Qihou L. Zhou, Univ. of Pennsylvania (United States)
King-Young Wong, Univ. of Pennsylvania (United States)
O. Zamani-Khamiri, Univ. of Pennsylvania (United States)
Anthony F. Garito, Univ. of Pennsylvania (United States)

Published in SPIE Proceedings Vol. 1337:
Nonlinear Optical Properties of Organic Materials III
Garo Khanarian, Editor(s)

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