Enhanced infrared transmission from gold wire-grid arrays via surface plasmons in continuous graphene (Presentation Recording)

2015 ◽  
Author(s):  
Zizhuo Liu ◽  
Serkan Bütün ◽  
Edgar Palacios ◽  
Koray Aydin
2016 ◽  
Vol 7 ◽  
pp. 1519-1526 ◽  
Author(s):  
Ilya A Milekhin ◽  
Sergei A Kuznetsov ◽  
Ekaterina E Rodyakina ◽  
Alexander G Milekhin ◽  
Alexander V Latyshev ◽  
...  

The study of infrared absorption by linear gold nanoantennas fabricated on a Si surface with underlying SiO2 layers of various thicknesses allowed the penetration depth of localized surface plasmons into SiO2 to be determined. The value of the penetration depth derived experimentally (20 ± 10 nm) corresponds to that obtained from electromagnetic simulations (12.9–30.0 nm). Coupling between plasmonic excitations of gold nanoantennas and optical phonons in SiO2 leads to the appearance of new plasmon–phonon modes observed in the infrared transmission spectra the frequencies of which are well predicted by the simulations.


2008 ◽  
Vol 57 (11) ◽  
pp. 7210
Author(s):  
Hua Lei ◽  
Song Guo-Feng ◽  
Guo Bao-Shan ◽  
Wang Wei-Min ◽  
Zhang Yu

Author(s):  
Liling Cho ◽  
David L. Wetzel

Polarized infrared microscopy has been used for forensic purposes to differentiate among polymer fibers. Dichroism can be used to compare and discriminate between different polyester fibers, including those composed of polyethylene terephthalate that are frequently encountered during criminal casework. In the fiber manufacturering process, fibers are drawn to develop molecular orientation and crystallinity. Macromolecular chains are oriented with respect to the long axis of the fiber. It is desirable to determine the relationship between the molecular orientation and stretching properties. This is particularly useful on a single fiber basis. Polarized spectroscopic differences observed from a single fiber are proposed to reveal the extent of molecular orientation within that single fiber. In the work presented, we compared the dichroic ratio between unstretched and stretched polyester fibers, and the transition point between the two forms of the same fiber. These techniques were applied to different polyester fibers. A fiber stretching device was fabricated for use on the instrument (IRμs, Spectra-Tech) stage. Tension was applied with a micrometer screw until a “neck” was produced in the stretched fiber. Spectra were obtained from an area of 24×48 μm. A wire-grid polarizer was used between the source and the sample.


1973 ◽  
Vol 34 (C6) ◽  
pp. C6-95-C6-95
Author(s):  
T. A. CALLCOTT ◽  
E. T. ARAKAWA
Keyword(s):  

1984 ◽  
Vol 45 (C5) ◽  
pp. C5-233-C5-241 ◽  
Author(s):  
G. I. Stegeman ◽  
A. A. Maradudin ◽  
R. F. Wallis
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document