Surface plasmons in the near UV wavelength range in circular metal film gratings

2012 ◽  
Author(s):  
K. Ushakova ◽  
S. F. Pereira ◽  
H. P. Urbach
Keyword(s):  
Surface Plasmons ◽  
Wavelength Range ◽  
Metal Film

Propagation length of surface plasmons in a metal film with roughness

2009 ◽  
Vol 48 (30) ◽  
pp. 5683 ◽  
Author(s):  
Andrei Kolomenski ◽  
Alexandre Kolomenskii ◽  
John Noel ◽  
Siying Peng ◽  
Hans Schuessler
Keyword(s):  
Surface Plasmons ◽  
Metal Film ◽  
Propagation Length

scholarly journals Кулоновские плазмон-экситоны в планарных наноструктурах металл-полупроводник

2021 ◽  
Vol 63 (4) ◽  
pp. 527
Author(s):  
В.А. Кособукин
Keyword(s):  
Quantum Well ◽  
Surface Plasmons ◽  
Metal Film ◽  
Equations Of Motion ◽  
Normal Modes ◽  
Harmonic Oscillators ◽  
Two Dimensional ◽  
Coupled Harmonic Oscillators ◽  
Dipole Force ◽  
Two Peaks

A theory of Coulomb (non-radiative) plasmons-excitons in a semiconductor with adjacent quantum well and ultrathin metal film is presented. The equations of motion are formulated for the polarization waves of surface plasmons and quasi-two-dimensional excitons with taking account of Coulomb interaction between them. Within a model of coupled harmonic oscillators, solved are the problems of Coulomb plasmon, exciton and plasmon-exciton excitations in the presence of an external dipole force. The coupling contant is calculated for plasmon-excitons, their optical spectra are investigated, and the relative contributions of plasmons and excitons to the normal modes are found. It is concluded that near the resonance between plasmon and exciton the spectrum of plasmon-exciton excitations consists of two peaks whose behavior in passing through the resonance shows the signs of anti-crossing effect (repulsion of frequencies).

scholarly journals Localized overheating on aluminum metafilms mediated by surface plasmons

2021 ◽  
Vol 67 (5 Sep-Oct) ◽  
Author(s):  
David Eduardo Martínez Lara ◽  
Ricardo González Campuzano ◽  
José Luis Benítez Benítez ◽  
Doroteo Mendoza López
Keyword(s):  
Electrical Resistivity ◽  
Surface Plasmons ◽  
Wavelength Range ◽  
Radiative Decay ◽  
Incident Radiation ◽  
Geometric Parameters ◽  
Temperature Measurements ◽  
Hot Electrons ◽  
Aluminum Films ◽  
Thin Aluminum

We studied the increase in temperature of systems formed by thin aluminum films deposited on texturized substrates which we denominated aluminum metafilms. By varying the geometric parameters of the metafilms, surface plasmons in the wavelength range of ~420-770 nm were excited. Temperature measurements as a function of the intensity of incident radiation in the interval from 0-to 4X10^18 (photons/s cm^2) using wavelengths of 445, 532 and 650 nm, showed temperature increases up to ~200 K, these attributed to metafilm morphology and hot electrons result of the non-radiative decay of the surface plasmons. Also increases up to 2.3X10^(-4) Ohm cm  in electrical resistivity were recorded when the metafilms were radiated for times of ~1 s; when the exposure times were greater than ~4 s, irreversibly changes in the morphology of the samples were observed.

scholarly journals Effect of metal film thickness on Tamm plasmon-coupled emission

2014 ◽  
Vol 16 (46) ◽  
pp. 25523-25530 ◽  
Author(s):  
Yikai Chen ◽  
Douguo Zhang ◽  
Liangfu Zhu ◽  
Qiang Fu ◽  
Ruxue Wang ◽  
...  
Keyword(s):  
Film Thickness ◽  
Surface Plasmons ◽  
Metal Film ◽  
Ag Film ◽  
Angle Dependent Reflectivity

We calculated the angle-dependent reflectivity of a Tamm structure, which demonstrates the effect of Ag film thickness on the excitation of surface plasmons and Tamm plasmons.

scholarly journals A TM-Pass/TE-Stop Polarizer Based on a Surface Plasmon Resonance

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Yuu Wakabayashi ◽  
Junji Yamauchi ◽  
Hisamatsu Nakano
Keyword(s):  
Wavelength Range ◽  
Metal Film ◽  
Oblique Incidence ◽  
Extinction Ratio ◽  
Normal Incidence ◽  
Metal Films ◽  
Range Shifts ◽  
Dielectric Gratings ◽  
Dielectric Grating ◽  
Difference Time

A TM-pass/TE-stop polarizer consisting of a metal film sandwiched between dielectric gratings is investigated using the finite-difference time-domain method. At normal incidence with respect to the grating plane, a transmissivity of more than 94% and a reflectivity of more than 98% are obtained at  m for the TM and TE waves, respectively. The extinction ratio is more than 17 dB over a wavelength range of 1.50 m to 1.75 m. A high extinction ratio is maintained at oblique incidence, although the wavelength range shifts towards longer wavelengths. The TM-pass/TE-stop operation is also achieved with a modified structure, in which a dielectric grating is sandwiched between metal films.

scholarly journals Metal-induced energy transfer

Nanophotonics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1689-1699 ◽  
Author(s):  
Ingo Gregor ◽  
Alexey Chizhik ◽  
Narain Karedla ◽  
Jörg Enderlein
Keyword(s):  
Energy Transfer ◽  
Surface Plasmons ◽  
Fluorescence Lifetime ◽  
Metal Film ◽  
Radiative Decay ◽  
Life Sciences ◽  
Radiative Decay Rate ◽  
Technical Developments ◽  
Coated Surface ◽  
Technical Details

AbstractSince about a decade, metal-induced energy transfer (MIET) has become a tool to measure the distance of fluorophores to a metal-coated surface with nanometer accuracy. The energy transfer from a fluorescent molecule to surface plasmons within a metal film results in the acceleration of its radiative decay rate. This can be observed as a reduction of the molecule’s fluorescence lifetime which can be easily measured with standard microscopy equipment. The achievable distance resolution is in the nanometer range, over a total range of about 200 nm. The method is perfectly compatible with biological and even live cell samples. In this review, we will summarize the theoretical and technical details of the method and present the most important results that have been obtained using MIET. We will also show how the latest technical developments can contribute to improving MIET, and we sketch some interesting directions for its future applications in the life sciences.

Sign in / Sign up

Export Citation Format

Share Document