Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1992),
  • paper JFE3

Excited-state enhancement of nonresonant degenerate four-wave mixing in conjugated linear chains

Not Accessible

Your library or personal account may give you access

Abstract

A new enhancement mechanism for nonlinear optical processes originating from real population of electronic excited states in conjugated linear chains has been presented in previous theoretical studies.1,2 Compared to the ground state,3,4 A the calculated nonresonant third-order optical susceptibility γSπ(− ω4; ωl , ω2, ω3) of linear chain molecules can be enhanced by orders of magnitude, or even change sign, when the first (S1) or second (S2) electronic excited state is optically pumped and then populated for times suitably long to perform nonresonant measurements of γSπ(− ω4; ωl , ω2, ω3) at frequencies different from the resonant pump frequency. In this study. we report ;What we believe to be the first experimental observation of excited-state enhancement of the degenerate four-wave mixing (DFWM) Susceptibility γSπ(− ω; ω ,− ω, ω) of a conjugated linear chain, diphenylexatriene timescales and then probed nonresonantly through picosecond DFWM.

© 1992 Optical Society of America

PDF Article
More Like This
Excited State Enhancement of Nonresonant Degenerate Four Wave Mixing in Conjugated Linear Chains

D. C. Rodenberger, J. R. Heflin, and A. F. Garito
TuO5 International Quantum Electronics Conference (IQEC) 1992

Enhanced Nonresonant Degenerate Four Wave Mixing in Conjugated Linear Chains through Excited State Population

D.C. Rodenberger, J.R. Heflin, and A.F. Garito
FB3 Nonlinear Optics (NLO) 1992

Excited State Dynamics of the Third Order Nonlinear Optical Susceptibility in Conjugated Linear Chains

W.D. Chen, D.C. Rodenberger, R.F. Shi, Q.L. Zhou, and A.F. Garito
ThA.1 Organic Thin Films for Photonic Applications (OTF) 1993

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved