Picosecond all-optical logic gate in a nonlinear organic étalon

V. S. Williams, Z. Z. Ho, N. Peyghambarian, W. M. Gibbons, R. P. Grasso, M. K. O'Brien, P. J. Shannon, S. T. Sun

Research output: Contribution to journalArticle

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Abstract

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.

Original languageEnglish (US)
Pages (from-to)2399-2401
Number of pages3
JournalApplied Physics Letters
Volume57
Issue number23
DOIs
StatePublished - Dec 1 1990

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Williams, V. S., Ho, Z. Z., Peyghambarian, N., Gibbons, W. M., Grasso, R. P., O'Brien, M. K., Shannon, P. J., & Sun, S. T. (1990). Picosecond all-optical logic gate in a nonlinear organic étalon. Applied Physics Letters, 57(23), 2399-2401. https://doi.org/10.1063/1.103857