High-contrast modulation of light with light by control of surface plasmon polariton wave coupling | Zendy

Alexey V. Krasavin | Zendy; Kevin F. MacDonald | Zendy; Nikolay I. Zheludev | Zendy; Anatoly V. Zayats | Zendy

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High-contrast modulation of light with light by control of surface plasmon polariton wave coupling

Author(s) -

Alexey V. Krasavin,

Kevin F. MacDonald,

Nikolay I. Zheludev,

Anatoly V. Zayats

Publication year - 2004

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1808240

Subject(s) - optoelectronics , optics , plasmon , materials science , surface plasmon polariton , polariton , surface plasmon , modulation (music) , light intensity , nanosecond , fluence , light beam , localized surface plasmon , physics , laser , acoustics

We have demonstrated a new mechanism for modulating light with light bycontrolling the efficiency with which light is coupled into a plasmon polaritonwave. An optical fluence of 15 mJ/cm^2 in the control channel is sufficient toachieve nearly a 10-fold intensity modulation of the signal beam reflected froma Glass/MgF_2/Ga structure. The mechanism depends on a nanoscale light-inducedstructural transformation in the gallium layer and has transient switchingtimes of the order of a few tens of nanoseconds. It offers high modulationcontrast for signals in the visible and near infrared spectral ranges.Comment: RevTex 4, 3 pages, 4 figure

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