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Strong light-matter coupling between molecules and plasmonic nanoparticles give rise to new hybrid eigenstates of the coupled system, commonly referred to as polaritons, or more precisely, plexcitons. Over the last decade it has been amply…

Chemical Physics · Physics 2024-02-06 Marco Romanelli , Stefano Corni

Single-molecule fluorescence techniques are essential for investigating the molecular mechanisms in biological processes. However, achieving sub-millisecond temporal resolution to monitor fast molecular dynamics remains a significant…

Optics · Physics 2023-03-02 Sunny Tiwari , Prithu Roy , Jean-Benoît Claude , Jérôme Wenger

Bosonic condensates offer exciting prospects for studies of non-equilibrium quantum dynamics. Understanding the dynamics is particularly challenging in the sub-picosecond timescales typical for room temperature luminous driven-dissipative…

Tin-phthalocyanine molecules adsorbed on a NaCl ultrathin film on Au(111) exhibit electrofluorescence excited by a current across a scanning tunneling microscope junction. Exploring the dependence of the molecular monomer photon yield on…

Mesoscale and Nanoscale Physics · Physics 2026-03-03 Maximilian Kögler , Nicolas Néel , Jörg Kröger

In this paper, we analyze a chain-linked triple-cavity photonic molecule (TCPM) with controllable coupling strengths between the cavities on their spectral properties and field (energy) distributions by solving eigenvalues and eigenvectors…

Optics · Physics 2017-04-05 Chao Yang , Yong Hu , Xiaoshun Jiang , Min Xiao

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

Single molecule fluorescence tracking provides information at nm-scale and ms-temporal resolution about the dynamics and interaction of individual molecules in a biological environment. While the dynamic behavior of isolated molecules can…

Statistical Mechanics · Physics 2021-04-07 Horst-Holger Boltz , Alexei Sirbu , Nina Stelzer , Martin J. Lohse , Christof Schütte , Paolo Annibale

Molecules are ubiquitous in natural phenomena and man-made products, but their use in quantum optical applications has been hampered by incoherent internal vibrations and other phononic interactions with their environment. We have now…

Single dye molecules at cryogenic temperatures display many spectroscopic phenomena known from free atoms and are thus promising candidates for fundamental quantum optical studies. However, the existing techniques for the detection of…

Quantum Physics · Physics 2008-02-12 Gert Wrigge , Ilja Gerhardt , Jaesuk Hwang , Gert Zumofen , Vahid Sandoghdar

A surrounding electromagnetic environment can engineer spontaneous emissions from quantum emitters through the Purcell effect. For instance, a plasmonic antenna can efficiently confine an electromagnetic field and enhance the fluorescent…

Optics · Physics 2021-12-22 Jingyi Zhao , Weidong Zhang , Te Wen , Lulu Ye , Hai Lin , Jinglin Tang , Qihuang Gong , Guowei Lu

The combination of single photon emitters (quantum dots) and tailored metal nanoparticles with defined size and shape allows a detailed study of the interaction between light and matter. The enhanced optical near-field of the nanoparticles…

Mesoscale and Nanoscale Physics · Physics 2017-04-21 Gernot Schaffernak , Christian Gruber , Joachim R. Krenn , Markus Krug , Marija Gašparić , Martin Belitsch , Andreas Hohenau

We theoretically investigate a single fluorescent molecule as a hybrid quantum optical device, in which multiple external laser sources exert control of the vibronic states. In the high-saturation regime, a coherent interaction is…

Achieving dynamic manipulation and control of single molecules at high spatio-temporal resolution is pivotal for advancing atomic-scale computing and nanorobotics. However, this endeavour is critically challenged by complex nature of atomic…

Atomic and Molecular Clusters · Physics 2024-06-18 Divyam Neer Verma , KV Chinmaya , Jan Heck , G Mohan Rao , Sonia Contera , Moumita Ghosh , Siddharth Ghosh

Biomolecules exhibit dynamic conformations critical to their functions, yet observing these processes at the single-molecule level under native conditions remains a formidable challenge. While surface immobilization has been widely used to…

Instrumentation and Detectors · Physics 2025-12-22 Funing Liu , Qitao Hu , Anton Sabantsev , Giovanni Di Muccio , Shuangshuang Zeng , Mauro Chinappi , Sebastian Deindl , Zhen Zhang

The coupling of nanostructures with emitters opens ways for the realization of man-made subwavelength light emitting elements. In this article, we investigate the modification of fluorescence when an emitter is placed close to a…

Other Condensed Matter · Physics 2009-11-13 S. Kuehn , G. Mori , M. Agio , V. Sandoghdar

Quantum plasmonics explores how light interacts with collective charge oscillations at metal-dielectric interfaces, enabling strong confinement and enhanced quantum effects at the nanoscale. While traditional quantum optics focuses on…

Quantum Physics · Physics 2025-04-03 Mingyuan Hong

In the past decade, advances in nanotechnology have led to the development of plasmonic nanocavities which facilitate light-matter strong coupling in ambient conditions. The most robust example is the nanoparticle-on-mirror (NPoM) structure…

We introduce a model description of a diatomic molecule in an optical cavity, with pump and fluorescent fields, and electron and nuclear motion are treated on equal footing and exactly. The model accounts for several optical response…

Quantum Physics · Physics 2024-05-30 Megha Gopalakrishna , Emil Viñas Boström , Claudio Verdozzi

Photonic molecules - particular systems composed of coupled optical resonators - emulate the behavior of complex physical systems exhibiting discrete energy levels. In this work, we present a novel photonic molecule composed of two strongly…

Optics · Physics 2023-12-06 Sara Kacmoli , Deborah L. Sivco , Claire F. Gmachl

A driven high-Q Si microcavity is known to exhibit limit cycle oscillation originating from carrier-induced and thermo-optic nonlinearities. We propose a novel nanophotonic device to realize synchronized optical limit cycle oscillations…

Optics · Physics 2020-09-09 Naotomo Takemura , Masato Takiguchi , Masaya Notomi