Results 11 to 20 of about 20,376 (211)

Surface Plasmon Polariton Graphene Photodetectors [PDF]

Nano Letters, 2015
The combination of plasmonic nanoparticles and graphene enhances the responsivity and spectral selectivity of graphene-based photodetectors. However, the small area of the metal-graphene junction, where the induced electron-hole pairs separate, limits the photoactive region to submicron length scales.
T.J. Echtermeyer, S. Milana, U. Sassi, A. Eiden, M. Wu, E. Lidorikis, A.C. Ferrari   +6 more
openaire   +5 more sources

Terahertz Refractive Index Sensor Based on Enhanced Extraordinary Optical Transmission

Crystals, 2022
This paper presents a structure for refractive index sensors in the terahertz (THz) band. The THZ sensor is studied in simulation, utilizing the strong local electromagnetic field intensity produced by the enhanced extraordinary optical transmission ...
Kaixiang Sun, Jiukai Fang, Yanpeng Shi, Shengnan Shi, Shan Zhang, Jinmei Song, Meiping Li, Xiaodong Wang, Fuhua Yang   +8 more
doaj   +1 more source

Stimulated Emission of Surface Plasmon Polaritons [PDF]

Physical Review Letters, 2008
8 pages; 3 ...
Noginov, M. A., Zhu, G., Mayy, M. F., Ritzo, B. A., Noginova, N., Podolskiy, V. A.   +5 more
openaire   +3 more sources

Robust and Broadband Graphene Surface Plasmon Waveguide Coupler via Quantum Control

Frontiers in Physics, 2022
In this article, a novel graphene subwavelength waveguide coupler is designed based on the quantum control theory. Compared with metal surface plasmon polaritons (SPPs), graphene surface plasmon polaritons (GSPPs) have a smaller SPP wavelength and ...
Yun Chen, Wei Huang, Kelvin J. A. Ooi, Wentao Zhang   +3 more
doaj   +1 more source

Subwavelength localization and toroidal dipole moment of spoof surface plasmon polaritons [PDF]

, 2015
We experimentally and theoretically demonstrate subwavelength scale localization of spoof surface plasmon polaritons at a point defect in a two-dimensional groove metal array.
Hess, O, Kee, C-S, Kim, J-E, Kim, K-J, Kim, S-H, Oh, SS, Park, HY   +6 more
core   +3 more sources

Surface plasmon polariton Wannier–Stark ladder [PDF]

Optics Letters, 2014
The propagation of a surface plasmon polariton on a planar metal surface perturbed by N equally spaced rectangular grooves, each with the same width but with varying depths, is investigated by the finite-difference time-domain method. For a linear dependence of the depth of the nth groove on n, the transmissivity of the surface plasmon polariton and of
Kuzmiak, V, Maradudin, AA, Méndez, ER
openaire   +5 more sources

Surface plasmon polariton absorption modulator

Optics Express, 2011
An electrically controlled ultra-compact surface plasmon polariton absorption modulator (SPPAM) is proposed. The device can be as small as a few micrometers depending on the required extinction ratio and the acceptable loss. The device allows for operation far beyond 100 Gbit/s, being only limited by RC time constants.
Melikyan, A., Lindenmann, N., Walheim, S., Leufke, P. M., Ulrich, S., Ye, J., Vincze, P., Hahn, H., Schimmel, T., Koos, C., Freude, W., Leuthold, J.   +11 more
openaire   +4 more sources

Loss mechanisms of surface plasmon polaritons on gold probed by cathodoluminescence imaging spectroscopy [PDF]

, 2008
We use cathodoluminescence imaging spectroscopy to excite surface plasmon polaritons and measure their decay length on single crystal and polycrystalline gold surfaces. The surface plasmon polaritons are excited on the gold surface by a nanoscale focused
A. Polman, E. J. R. Vesseur, H. A. Atwater, H. J. Lezec, J. Verhoeven, M. Kuttge, Raether H.   +6 more
core   +2 more sources

Surface Plasmon Polaritons on Metallic Surfaces

Optics and Photonics News, 2007
A unified theoretical study of surface plasmon polaritons on flat metallic surfaces and interfaces is undertaken to clarify the nature of these electromagnetic waves, conditions under which they are launched, and the restrictions imposed by Maxwell's equations that ultimately determine the strength of the excited plasmons. Finite Difference Time Domain
Armis R, Zakharian, Jerome V, Moloney, Masud, Mansuripur   +2 more
openaire   +2 more sources

Invited - Enhancing Optical Sensing with Nanocoatings for Advanced Chemical and Biological Detection [PDF]

EPJ Web of Conferences
Optical sensing exploiting plasmonics and other types of surface waves provides exceptional performance for chemical and biological detection due to its high sensitivity and real-time capabilities.
Coelho Luís C. C., Almeida Miguel, Carvalho João, Santos Paulo, Santos André, Mendes João, de Almeida José M. M. M.   +6 more
doaj   +1 more source