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 publicationJournal articleAcademic researchpeer-review

136 Citations (Scopus)


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 languageEnglish
Article number141102
JournalApplied Physics Letters
Issue number14
Publication statusPublished - 7 Apr 2014
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Ultrafast all-optical switching via coherent modulation of metamaterial absorption'. Together they form a unique fingerprint.

Cite this