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Proceedings Paper

Ultrafast response of negative index metamaterials in the near-infrared
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Paper Abstract

Nanoimprint lithography is used to fabricate a metamaterial with the "fishnet" structure composed of Ag/a-Si/Ag layers that exhibits negative refractive index in the near-infrared. We have carried out a femtosecond pump-probe experiment to measure the transient photo-induced response of this structure. With a pump fluence of 330μJ/cm2 at 800nm, the transmission at the magnetic resonance is increased by ~15.4%. The induced change originated from carrier excitation in the a-Si layer has a fast decay constant of 1.1ps.

Paper Details

Date Published: 24 February 2009
PDF: 6 pages
Proc. SPIE 7205, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics II, 72050V (24 February 2009); doi: 10.1117/12.808455
Show Author Affiliations
David J. Cho, Univ. of California, Berkeley (United States)
Wei Wu, Hewlett-Packard Labs. (United States)
Ekaterina Ponizovskaya, Hewlett-Packard Labs. (United States)
Pratik Chaturvedi, Hewlett-Packard Labs. (United States)
Alexander M. Bratkovksy, Hewlett-Packard Labs. (United States)
Shih-Yuan Wang, Hewlett-Packard Labs. (United States)
Xiang Zhang, Univ. of California, Berkeley (United States)
Feng Wang, Univ. of California, Berkeley (United States)
Y. Ron Shen, Univ. of California, Berkeley (United States)
Lawrence Berkeley National Lab. (United States)


Published in SPIE Proceedings Vol. 7205:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics II
Thomas J. Suleski; Winston V. Schoenfeld; Jian Jim Wang, Editor(s)

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