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Localized surface plasmon resonances (LSPRs) have recently been identified in extremely diluted electron systems obtained by doping semiconductor quantum dots. Here we investigate the role that different surface effects, namely electronic…

Optics · Physics 2015-04-29 R. Carmina Monreal , Tomasz J. Antosiewicz , S. Peter Apell

The optical response of (InGa)(AsSb)/GaAs quantum dots (QDs) grown on GaP (001) substrates is studied by means of excitation and temperature-dependent photoluminescence (PL), and it is related to their complex electronic structure. Such QDs…

Mesoscale and Nanoscale Physics · Physics 2019-11-13 Petr Steindl , Elisa Maddalena Sala , Benito Alén , David Fuertes Marrón , Dieter Bimberg , Petr Klenovský

The condition of phase matching prohibits the transfer of excitation from free-space photons to surface plasmon polaritons (SPP). We propose and analyze a scheme that excites an ensemble of emitters in a collective state, which is phase…

Quantum Physics · Physics 2019-06-21 Yu-Xiang Zhang , Yuan Zhang , Klaus Mølmer

We report the experimental observation of the transverse spin and associated spin-momentum locking of surface plasmon polaritons (SPPs) excited in a plasmonic single crystalline silver nanowire (AgNW). In contrast to the SPPs excited in…

Optics · Physics 2021-11-03 Chetna Taneja , Diptabrata Paul , G V Pavan Kumar

Transmission spectra of metallic films or membranes perforated by arrays of subwavelength slits or holes have been widely interpreted as resonance absorption by surface plasmon polaritons (SPPs). Alternative interpretations involving…

Optics · Physics 2009-11-11 G. Gay , O. Alloschery , B. Vairis de Lesegno , J. Weiner , H. J. Lezec

Light-matter interactions in solid-state systems have attracted considerable interest in recent years. Here, we report on a room-temperature study on the interaction of tungsten disulfide (WS$_2$) monolayer excitons with a hybrid plasmon…

Mesoscale and Nanoscale Physics · Physics 2023-09-08 Yuhao Zhang , Hans-Joachim Schill , Stephan Irsen , Stefan Linden

Surface enhanced Raman scattering mediated by surface plasmons polaritons with wave vector much larger than those of light is considered. The excitation of these polaritons and their efficient Raman scattering due to low group velocity and…

Optics · Physics 2015-06-04 Tomas Lopez-Rios

Density-functional calculations using an exact exchange potential for a two-dimensional electron gas (2DEG) formed in a GaAs single quantum well predict the existence of a spin-polarized phase, when an excited subband becomes slightly…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. R. Goñi , P. Giudici , F. A. Reboredo , C. R. Proetto , C. Thomsen , K. Eberl , M. Hauser

In an attenuated total reflection (ATR) geometry, energy extracted from an incident light beam by surface plasmon polariton (SPP) creation is implicitly considered to dissipate as heat. However, we show that a sharpened tip interacting with…

Optics · Physics 2008-04-23 Robert P. Schumann , Stephen Gregory

In this review we look at the concepts and state-of-the-art concerning the strong coupling of surface plasmon-polariton modes to states associated with quantum emitters such as excitons in J-aggregates, dye molecules and quantum dots. We…

Optics · Physics 2015-01-19 P. Törmä , W. L. Barnes

Directional emission of photons with designed polarizations and orbital angular momenta is crucial for exploiting full potential of quantum emitters (QEs) within quantum information technologies. Capitalizing on the concept of hybrid…

Optics · Physics 2021-12-21 Yinhui Kan , Sergey I. Bozhevolnyi

Strong coupling (SC) between light and matter excitations such as excitons and molecular vibrations bear intriguing potential for controlling chemical reactivity, conductivity or photoluminescence. So far, SC has been typically achieved…

Investigations of the optical response of subwavelength structure arrays milled into thin metal films has revealed surprising phenomena including reports of unexpectedly high transmission of light. Many studies have interpreted the optical…

Optics · Physics 2009-11-11 G. Gay , O. Alloschery , B. Viaris de Lesegno , C. O'Dwyer , J. Weiner , H. J. Lezec

We theoretically investigate strong coupling between a single molecule and a single metallic nanoparticle. A theory suited for the quantum-mechanical description of surface plasmon polaritons (SPPs) is developed. The coupling between these…

Mesoscale and Nanoscale Physics · Physics 2013-09-10 Andreas Truegler , Ulrich Hohenester

We report on the modification of tin (Sn) film surfaces under a laser beam irradiation that triggers surface plasmon polariton (SPP) excitations. The observed surface features in the form of small raised grains, with well-defined rooting,…

Materials Science · Physics 2023-10-31 Vamsi Borra , Srikanth Itapu , Victor G. Karpov , Daniel G. Georgiev

Excitation of multiple surface plasmon-polaritons(SPPs) by an equichiral sculptured thin film with a metal layer defect was studied theoretically in the Sarid configuration, using the transfer matrix method. Multiple SPP modes were…

Materials Science · Physics 2018-02-13 SH. Hosseininezhad , F. Babaei

We present an experimental study of electron-electron exchange interaction in self-assembled CdTe/ZnTe quantum dots based on the photoluminescence measurements. The character and strength of this interaction are obtained by simultaneous…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 T. Kazimierczuk , T. Smoleński , J. Kobak , M. Goryca , W. Pacuski , A. Golnik , K. Fronc , Łukasz Kłopotowski , P. Wojnar , P. Kossacki

Induced polarization by Dirac electrons in double-layer graphene can affect hybridization of radiative and evanescent fields. Electron back action appears as a localized optical field to modify an incident surface-plasmon-polariton (SPP)…

Mesoscale and Nanoscale Physics · Physics 2018-05-09 Danhong Huang , Andrii Iurov , Godfrey Gumbs

We study the energy and momentum of the surface plasmon-polariton (SPP) excited in a symmetric 3-layer "insulator-metal-insulator" structure, which is known to support the symmetric (S) mode with the negative group velocity as well as the…

Optics · Physics 2021-12-30 A. Y. Bekshaev , O. A. Angelsky

We theoretically investigate the surface plasmon polariton (SPP) at the interface between 3D strong topological insulator (TI) and layered superconductor-magnetic insulator structure. The tunability of SPP through electronic doping can be…

Mesoscale and Nanoscale Physics · Physics 2016-10-05 Mingda Li , Zuyang Dai , Wenping Cui , Zhe Wang , Ferhat Katmis , Peisi Le , Jiayue Wang , Lijun Wu , Yimei Zhu
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