Optical absorption by surface plasmons in deep sub-wavelength channels

2006 ◽  
Vol 267 (1) ◽  
pp. 253-259 ◽  
Author(s):  
T.J. Davis ◽  
S.C. Mayo ◽  
B.A. Sexton
Keyword(s):  
Optical Absorption ◽  
Surface Plasmons ◽  
Sub Wavelength

Sub-wavelength interference in the field assisted by surface plasmons

Optik ◽  
2014 ◽  
Vol 125 (10) ◽  
pp. 2339-2343 ◽  
Author(s):  
Stuti Joshi ◽  
Manish Verma ◽  
Mohd. Shahid Khan ◽  
H.C. Kandpal
Keyword(s):  
Surface Plasmons ◽  
Sub Wavelength

scholarly journals Radiation-Induced Correlation between Molecules Nearby Metallic Antenna Array

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Yoshiki Osaka ◽  
Nobuhiko Yokoshi ◽  
Hajime Ishihara
Keyword(s):  
Optical Absorption ◽  
Surface Plasmons ◽  
Approximation Method ◽  
Photon Emission ◽  
Peak Shift ◽  
Dipole Approximation ◽  
Spectral Peak ◽  
Localized Surface Plasmons ◽  
Radiation Induced ◽  
The Individual

We theoretically investigate optical absorption of molecules embedded nearby metallic antennas by using discrete dipole approximation method. It is found that the spectral peak of the absorption is shifted due to the radiation-induced correlation between the molecules. The most distinguishing feature of our work is to show that the shift is largely enhanced even when the individual molecules couple with localized surface plasmons near the different antennas. Specifically, we first consider the case that two sets of dimeric gold blocks with a spacing of a few nanometers are arranged and reveal that the intensity and spectral peak of the optical absorption strongly depend on the position of the molecules. In addition, when the dimeric blocks and the molecules are periodically arranged, the peak shift is found to increase up to ~1.2 meV (300 GHz). Because the radiation-induced correlation is essential for collective photon emission, our result implies the possibility of plasmon-assisted superfluorescence in designed antenna-molecule complex systems.

Plasmonic Lithography

2004 ◽  
Author(s):  
W. Srituravanich ◽  
N. Fang ◽  
C. Sun ◽  
S. Durant ◽  
M. Ambati ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Ion Beam ◽  
Near Field ◽  
Diffraction Limit ◽  
Fdtd Simulation ◽  
Hole Array ◽  
Exposure Test ◽  
Spacer Layer ◽  
Bull's Eye ◽  
Sub Wavelength

As the next-generation technology moves below 100 nm mark, the need arises for a capability of manipulation and positioning of light on the scale of tens of nanometers. Plasmonic optics opens the door to operate beyond the diffraction limit by placing a sub-wavelength aperture in an opaque metal sheet. Recent experimental works [1] demonstrated that a giant transmission efficiency (>15%) can be achieved by exciting the surface plasmons with artificially displaced arrays of sub-wavelength holes. Moreover the effectively short modal wavelength of surface plasmons opens up the possibility to overcome the diffraction limit in the near-field lithography. This shows promise in a revolutionary high throughput and high density optical lithography. In this paper, we demonstrate the feasibility of near-field nanolithography by exciting surface plasmon on nanostructures perforated on metal film. Plasmonic masks of hole arrays and “bull’s eye” structures (single hole surrounded by concentric ring grating) [2] are fabricated using Focused Ion Beam (FIB). A special index matching spacer layer is then deposited onto the masks to ensure high transmissivity. Consequently, an I-line negative photoresist is spun on the top of spacer layer in order to obtain the exposure results. A FDTD simulation study has been conducted to predict the near field profile [3] of the designed plasmonic masks. Our preliminary exposure test using these hole-array masks demonstrated 170 nm period dot array patterns, well beyond the resolution limit of conventional lithography using near-UV wavelength. Furthermore, the exposure result obtained from the bull’s eye structures indicated the characteristics of periodicity and polarization dependence, which confirmed the contribution of surface plasmons.

Mid-infrared direct injection and sub-wavelength focusing of designer’s surface plasmons polaritons

2011 ◽  
Author(s):  
Adel Bousseksou ◽  
Jean-Philippe Tetienne ◽  
Raffaele Colombelli ◽  
Arthur Babuty ◽  
Ioana Moldovan-Doyen ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Direct Injection ◽  
Mid Infrared ◽  
Surface Plasmons Polaritons ◽  
Sub Wavelength

Multidirectional sub-wavelength slit splitter and polarization analyzer for THz surface plasmons

2019 ◽  
Vol 432 ◽  
pp. 112-115 ◽  
Author(s):  
Qiaofen Zhu ◽  
Sixing Xi ◽  
Xiaoxue Jiao ◽  
Huaying Wang ◽  
Liying Lang ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Polarization Analyzer ◽  
Sub Wavelength

scholarly journals Interplay of Resonant Cavity Modes with Localized Surface Plasmons: Optical Absorption Properties of Bragg Stacks Integrating Gold Nanoparticles

2011 ◽  
Vol 23 (18) ◽  
pp. 2108-2112 ◽  
Author(s):  
Olalla Sánchez-Sobrado ◽  
Gabriel Lozano ◽  
Mauricio E. Calvo ◽  
Ana Sánchez-Iglesias ◽  
Luis M. Liz-Marzán ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Optical Absorption ◽  
Surface Plasmons ◽  
Resonant Cavity ◽  
Localized Surface Plasmons ◽  
Absorption Properties ◽  
Cavity Modes ◽  
Bragg Stacks
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