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Proceedings Paper

Femtosecond optical characterization of nonlinear organic materials and etalon logic gates
Author(s): Wayne M. Gibbons; R. P. Grasso; M. K. O'Brien; Paul J. Shannon; S. T. Sun; Valorie A. Williams; Winston Ho; Nasser Peyghambarian
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Paper Abstract

The femtosecond (fs) optical nonlinearities and dynamics of a guest-host organic material , 7-'[4-[ (4-hexyloxyphenyl) azo] (naphthyl) azo- (2 , 3-dihydro-l, 3-diinethyl-2--octyl) ] perimidine (DNP) doped poly (methyl inethacrylate) (PMMA) , were studied in thin film form. An all-optical NOR logic operation was demonstrated by constructing a nonlinear Fabry-Perot etalon with the guest-host material. The optical logic gate has a subpicosecond switch-on time. The switch-off time has a fast component of 4 picoseconds (ps) and slower components. Measurements of the excited state dynamics of the thin film indicate that the fast recovery is due to the electronic excited state lifetime of the DNP molecules. A contrast ratio of 1.7 between the switch-on and off states of the etalon gives a resonant nonlinearity of 6.7xlO9 cm2/kW for a 1 . 5 GW/cm2 pump intensity.

Paper Details

Date Published: 1 December 1990
PDF: 8 pages
Proc. SPIE 1337, Nonlinear Optical Properties of Organic Materials III, (1 December 1990); doi: 10.1117/12.22932
Show Author Affiliations
Wayne M. Gibbons, Hercules Inc. (United States)
R. P. Grasso, Hercules Inc. (United States)
M. K. O'Brien, Hercules Inc. (United States)
Paul J. Shannon, Hercules Inc. (United States)
S. T. Sun, Hercules Inc. (United States)
Valorie A. Williams, Optical Sciences Ctr./Univ. of (United States)
Winston Ho, Physical Optics Corp. (United States)
Nasser Peyghambarian, Optical Sciences Ctr./Univ. of (United States)


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

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