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Proceedings Paper

Quantum interference in femtosecond multi-photon absorption in conjugated dendrimers
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Paper Abstract

We demonstrate high contrast interference fringes when near-IR frequencies and UV frequency 3ω excite fluorescence via two alternative but in practice indistinguishable quantum pathways. We use specially synthesized organic dendrimers with an exceptionally large three-photon cross section, σ3=1.5 10-79 cm6 s2 based on bisdiphenylamino stilbene core and bis-diphenylamino di-styryl benzene repeat units. We show for the first time that quantum interference signal can be strong enough for being observed with an unaided eye.

Paper Details

Date Published: 18 August 2005
PDF: 8 pages
Proc. SPIE 5934, Nonlinear Optical Transmission and Multiphoton Processes in Organics III, 59340L (18 August 2005); doi: 10.1117/12.617308
Show Author Affiliations
Aleksander Rebane, Montana State Univ./Bozeman (United States)
Niklas Christensson, Montana State Univ./Bozeman (United States)
Lund Institute of Technology (Sweden)
Mikhail Drobizhev, Montana State Univ./Bozeman (United States)
Yuriy Stepanenko, Montana State Univ./Bozeman (United States)
Institute of Physical Chemistry (Poland)
Charles W. Spangler, Montana State Univ./Bozeman (United States)

Published in SPIE Proceedings Vol. 5934:
Nonlinear Optical Transmission and Multiphoton Processes in Organics III
A. Todd Yeates, Editor(s)

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