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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 17652–17657

Ultrafast modulation of optical metamaterials

David J. Cho, Wei Wu, Ekaterina Ponizovskaya, Pratik Chaturvedi, Alexander M. Bratkovsky, Shih-Yuan Wang, Xiang Zhang, Feng Wang, and Y. Ron Shen  »View Author Affiliations


Optics Express, Vol. 17, Issue 20, pp. 17652-17657 (2009)
http://dx.doi.org/10.1364/OE.17.017652


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Abstract

We show by pump-probe spectroscopy that the optical response of a fishnet metamaterial can be modulated on the femtosecond time scale. The modulation dynamics is dominated by pump-induced changes in the constituting dielectric medium, but the strength of modulation is dramatically enhanced through the plasmon resonance. The pump-induced spectral responses of the metamaterial provide understanding on how the resonance is modified by pump excitation. Our study suggests that metamaterials can be used as high-speed amplitude/phase modulators with terahertz-bandwidth.

© 2009 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(160.3918) Materials : Metamaterials
(240.6380) Optics at surfaces : Spectroscopy, modulation

ToC Category:
Metamaterials

History
Original Manuscript: August 13, 2009
Revised Manuscript: September 12, 2009
Manuscript Accepted: September 13, 2009
Published: September 17, 2009

Citation
David J. Cho, Wei Wu, Ekaterina Ponizovskaya, Pratik Chaturvedi, Alexander M. Bratkovsky, Shih-Yuan Wang, Xiang Zhang, Feng Wang, and Y. Ron Shen, "Ultrafast modulation of optical metamaterials," Opt. Express 17, 17652-17657 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-20-17652


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