Ultrafast all-optical switching via coherent modulation of metamaterial absorption

X. Fang; M.L. Tseng; J.-Y. Ou; K.F. Macdonald; Din-ping Tsai; N.I. Zheludev

doi:10.1063/1.4870635

Ultrafast all-optical switching via coherent modulation of metamaterial absorption

X. Fang, M.L. Tseng, J.-Y. Ou, K.F. Macdonald, Din-ping Tsai, N.I. Zheludev

Research output: Journal article publication › Journal article › Academic research › peer-review

143 Citations (Scopus)

Abstract

We report on the demonstration of a femtosecond all-optical modulator providing, without nonlinearity and therefore at arbitrarily low intensity, ultrafast light-by-light control. The device engages the coherent interaction of optical waves on a metamaterial nanostructure only 30 nm thick to efficiently control absorption of near-infrared (750-1040 nm) femtosecond pulses, providing switching contrast ratios approaching 3:1 with a modulation bandwidth in excess of 2 THz. The functional paradigm illustrated here opens the path to a broad family of meta-devices for ultrafast optical data processing in coherent networks. © 2014 AIP Publishing LLC.

Original language	English
Article number	141102
Journal	Applied Physics Letters
Volume	104
Issue number	14
DOIs	https://doi.org/10.1063/1.4870635
Publication status	Published - 7 Apr 2014
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4870635

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AU - Zheludev, N.I.

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AB - We report on the demonstration of a femtosecond all-optical modulator providing, without nonlinearity and therefore at arbitrarily low intensity, ultrafast light-by-light control. The device engages the coherent interaction of optical waves on a metamaterial nanostructure only 30 nm thick to efficiently control absorption of near-infrared (750-1040 nm) femtosecond pulses, providing switching contrast ratios approaching 3:1 with a modulation bandwidth in excess of 2 THz. The functional paradigm illustrated here opens the path to a broad family of meta-devices for ultrafast optical data processing in coherent networks. © 2014 AIP Publishing LLC.

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Ultrafast all-optical switching via coherent modulation of metamaterial absorption

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