Ultrafast all-optical switching via coherent modulation of metamaterial absorption

Xu Fang; Ming Lun Tseng; Jun Yu Ou; Kevin F. Macdonald; Din Ping Tsai; Nikolay I. Zheludev

doi:10.1063/1.4870635

Ultrafast all-optical switching via coherent modulation of metamaterial absorption

Xu Fang^*, Ming Lun Tseng, Jun Yu Ou, Kevin F. Macdonald, Din Ping Tsai, Nikolay I. Zheludev

^*Corresponding author for this work

Institute of Electronics

Research output: Contribution to journal › Article › peer-review

131 Scopus citations

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.

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

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AU - Fang, Xu

AU - Tseng, Ming Lun

AU - Ou, Jun Yu

AU - Macdonald, Kevin F.

AU - Tsai, Din Ping

AU - Zheludev, Nikolay I.

PY - 2014/4/7

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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.

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Ultrafast all-optical switching via coherent modulation of metamaterial absorption

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