Picosecond all-optical logic gate in a nonlinear organic étalon

An all-optical logic gate has been demonstrated in a nonlinear organic étalon using femtosecond laser pulses. The logic gate consists of a guest-host organic thin film, 7-[4-[(4-hexyloxyphenyl)azo](naphthyl)azo-(2,3-dihydro-1,3-dimethyl-2-octyl)] perimidine doped in poly(methyl methacrylate), sandwi...

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Bibliographic Details
Published in:Applied physics letters 1990-12, Vol.57 (23), p.2399-2401
Main Authors: WILLIAMS, V. S, HO, Z. Z, PEYGHAMBARIAN, N, GIBBONS, W. M, GRASSO, R. P, O'BRIEN, M. K, SHANNON, P. J, SUN, S. T
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Testing, measurement, noise and reliability
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Summary:An all-optical logic gate has been demonstrated in a nonlinear organic étalon using femtosecond laser pulses. The logic gate consists of a guest-host organic thin film, 7-[4-[(4-hexyloxyphenyl)azo](naphthyl)azo-(2,3-dihydro-1,3-dimethyl-2-octyl)] perimidine doped in poly(methyl methacrylate), sandwiched between two highly reflective mirrors. It shows a subpicosecond switch-on time and a switch-off or recovery time that has a fast, ≂4 ps component and slower components. A maximum contrast ratio of ≂2 between the switch-on and switch-off states of the optical gate was obtained. The nonlinear index of refraction is also measured from this Fabry–Perot interferometer to be Δn=0.005.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.103857