Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4870635
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Funding
- Engineering and Physical Sciences Research Council [EP/G060363/1]
- Royal Society and the Ministry of Education, Singapore [MOE2011-T3-1-005]
- National Science Council of Taiwan [NSC 102-2745-M-002-005-ASP, NSC101-2911-I-002-107]
- Engineering and Physical Sciences Research Council [EP/G060363/1] Funding Source: researchfish
- EPSRC [EP/G060363/1] Funding Source: UKRI
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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 30nm 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. (C) 2014 AIP Publishing LLC.
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