Publisher DOI: 10.1063/1.4813499
Title: Gold-silicon metamaterial with hyperbolic transition in near infrared
Language: English
Authors: Lang, Slawa 
Lee, Hooi Sing 
Petrov, Alexander  
Störmer, Michael 
Ritter, Martin  
Eich, Manfred 
Issue Date: 10-Jul-2013
Publisher: American Institute of Physics
Source: Applied Physics Letters 2 (103): 021905 (2013)
Journal or Series Name: Applied physics letters 
Abstract (english): In this paper, we focus on the creation and characterization of a hyperbolic metamaterial for near infrared. To shift the hyperbolic transition there, a stack of alternating 7 nm gold and 42 nm silicon layers is chosen. Samples are manufactured using magnetron sputtering and different measurements confirm their structure. We fit the Drude model of gold to reproduce measured reflectivity and transmittance by simulations. The collision frequency of the thin film gold is increased by 9 times, which shifts the transition of our metamaterial to the hyperbolic regime to even larger wavelengths. The performance is comparable to other proposed metamaterials. © 2013 AIP Publishing LLC.
URI: http://hdl.handle.net/11420/7561
ISSN: 1077-3118
Institute: Optische und Elektronische Materialien E-12 
Betriebseinheit Elektronenmikroskopie M-26 
Type: (wissenschaftlicher) Artikel
Funded by: Deutsche Forschungsgemeinschaft (DFG)
Project: SFB 986: Teilprojekt C1 - Strukturierte Emitter für effiziente und effektive Thermophotovoltaik 
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