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Single-molecule surface enhanced Raman scattering (SM-SERS) is one of the vital applications of plasmonic nanoparticles. The SM-SERS sensitivity critically depends on plasmonic hot-spots created at the vicinity of such nanoparticles. In…

We investigate the impact that light-forbidden exciton transitions have in the near-field population dynamics and far-field scattering spectrum of hybrid plasmon-emitter systems. Specifically, we consider a V-type quantum emitter,…

Mesoscale and Nanoscale Physics · Physics 2018-03-14 A. Cuartero-González , A. I. Fernández-Domínguez

Plasmonic waveguides offer the unique possibility to confine light far below the diffraction limit. Past room temperature experiments of single quantum emitters coupled to such waveguides have mainly focused on efficient channelling of the…

Optics · Physics 2020-03-02 Christian Schörner , Markus Lippitz

Overcoming the diffraction limit to achieve high optical resolution is one of the main challenges in the fields of plasmonics, nanooptics and nanophotonics. In this work, we introduce novel plasmonic structures consisting of nanoantennas…

Mesoscale and Nanoscale Physics · Physics 2018-09-12 Nancy Rahbany , Wei Geng , Renaud Bachelot , Christophe Couteau

This paper reports on the excitation of surface plasmons on gold-coated nanofibre tips by side-illumination with a laser beam and the coupling of the surface plasmons to the optical fiber. The measurements show a strong dependence of the…

Optics · Physics 2015-06-16 D. Auwärter , C. Zimmermann , S. Slama

Multiexcitonic transitions and emission of several photons per excitation comprise a very attractive feature of semiconductor quantum dots for optoelectronics applications. However, these higher-order radiative processes are usually…

Transport properties of a single plasmon interacting with a hybrid system composed of a semiconductor quantum dot (SQD) and a metal nanoparticle (MNP) coupled to one-dimensional surface plasmonic waveguide are investigated theoretically via…

Mesoscale and Nanoscale Physics · Physics 2016-11-23 Nam-Chol Kim , Myong-Chol Ko , Zhong-Hua Hao , Li Zhou , Jian-Bo Li , Qu-Quan Wang

Two-dimensional transition metal di-chalcogenide semiconductors provide unique possibilities to investigate strongly confined excitonic physics and a plasmonic platform integrable to such materials constitutes a hybrid system that can be of…

Mesoscale and Nanoscale Physics · Physics 2022-05-26 Bidisha Roy , Maex Blauth , Siddharth Dhomkar , Michael Kaniber , Vinod M. Menon , Jonathan. J. Finley

The plasmon-mediated manipulation of light-matter interaction in two-dimensional atomically transition-metal dichalcogenides (TMDs) critically depends on the design of plasmonic nanostructures to achieve the maximum optical field in TMDs.…

Optics · Physics 2021-12-07 Wei Li , Ming Xin , Wenze Lan , Qinghu Bai , Shuo Du , Gang Wang , Baoli Liu , Changzhi Gu

We revisit the fundamental topic of light scattering by single homogenous nanoparticles from the new perspective of excitation and manipulation of toroidal dipoles. It is revealed that besides within all-dielectric particles, toroidal…

Optics · Physics 2015-10-28 Wei Liu , Jianhua Shi , Bing Lei , Haojun Hu , Andrey E. Miroshnichenko

The optical properties of the hybrid core--shell nanostructures composed of a metallic core and an organic shell of molecular J-aggregates are determined by the electromagnetic coupling between plasmons localized at the surface of the…

Optics · Physics 2024-04-03 Alexey D. Kondorskiy

We demonstrate that nanocavity plasmons generated a few nanometers away from a molecule can induce molecular motion. For this, we study the well-known rapid shuttling motion of zinc phthalocyanine molecules adsorbed on ultrathin NaCl films…

Mesoscale and Nanoscale Physics · Physics 2021-07-07 Tzu-Chao Hung , Brian Kiraly , Julian H. Strik , Alexander A. Khajetoorians , Daniel Wegner

Vertical gold-nanogaps are created on microtubular cavities to explore the coupling between resonant light supported by the microcavities and surface plasmons localized at the nanogaps. Selective coupling of optical axial modes and…

Historically, the field of plasmonics has been relying on the framework of classical electrodynamics, with the local-response approximation of material response being applied even when dealing with nanoscale metallic structures. However,…

Electron-boson coupling is central to a comprehensive understanding of the diverse physical phenomena emerging from many-body interactions. Yet less attention has been paid to how plasmons, collective bosonic modes of electron density…

Manipulating strong light-matter interaction in semiconductor microcavities is crucial for developing high-performance exciton polariton devices with great potentials in next-generation all-solid state quantum technologies. In this work, we…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 Qiuyu Shang , Shuai Zhang , Jie Chen , Pengfei Yang , Wei Li , Yanfeng Zhang , Qihua Xiong , Xinfeng Liu , Qing Zhang

We study the interaction of a dark exciton Bose-Einstein condensate with the nuclei in GaAs/AlGaAs coupled quantum wells and find clear evidence for nuclear polarization buildup that accompanies the appearance of the condensate. We show…

Mesoscale and Nanoscale Physics · Physics 2026-05-12 Amit Jash , Michael Stern , Subhradeep Misra , Vladimir Umansky , Israel Bar Joseph

Interaction between plasmonic nanostructures and molecules is modeled based on the concept of quantized optical cavity for surface enhanced Raman scattering process. We have found that the background emission from plasmonic nanostructures…

Optics · Physics 2017-03-22 Yuqing Cheng , Jingyi Zhao , Te Wen , Guantao Li , Jianning Xu , Qihuang Gong , Guowei Lu

A scanning tunneling microscope (STM) can do more than atomic imaging and manipulation. Its tunneling current can also be used for the excitation of light, converting electron energy to photon energy. STM based single-molecule…

Optics · Physics 2019-01-01 Yao Zhang , Yang Zhang , Zhenchao Dong

We investigate the interactions between exciton-polaritons in N two-dimensional semiconductor layers embedded in a planar microcavity. In the limit of low-energy scattering, where we can ignore the composite nature of the excitons, we…

Mesoscale and Nanoscale Physics · Physics 2020-11-11 O. Bleu , G. Li , J. Levinsen , M. M. Parish