Ultrafast modulation of optical metamaterials

David J. Cho;Wei Wu;Ekaterina Ponizovskaya;Pratik Chaturvedi;Alexander M. Bratkovsky;Shih Yuan Wang;翔 张;Feng Wang;元壤 沈

University of California at Berkeley;Hewlett-Packard;Lawrence Berkeley National Laboratory

发表时间:2009-9-28

期 刊:Optics Express

语 言:English

U R L: http://www.scopus.com/inward/record.url?scp=70349667775&partnerID=8YFLogxK

摘要

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.

相关科学

物理学和天文学
原子与分子物理和光学

文献指纹

物理与天文学

pumps

modulation

spectral sensitivity

modulators

plasmons

high speed

bandwidth

probes

spectroscopy

excitation

被引量

期刊度量

Scopus度量

年份 CiteScore SJR SNIP
1996
1997
1998
1999 1.442 0.911
2000 1.222 0.75
2001 1.496 1.422
2002 1.63 1.768
2003 2.669 2.232
2004 2.819 2.464
2005 3.313 2.328
2006 3.235 2.363
2007 3.284 2.059
2008 3.204 2.404
2009 3.039 2.664
2010 2.906 2.425
2011 6.4 2.58 2.558
2012 6.5 2.562 2.095
2013 7.3 2.337 2.182
2014 7.2 2.313 2.116
2015 7.1 1.91 1.645
2016 6.7 1.532 1.531
2017 6.7 1.519 1.562
2018 6.8 1.473 1.631
2019 6.7 1.533 1.651
2020 6.5

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