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We study heat current autocorrelation function and thermal conductivity in core-shell nanowires by using molecular dynamics simulations. Interestingly, a remarkable oscillation effect in heat current autocorrelation function is observed in…

Materials Science · Physics 2015-05-30 Jie Chen , Gang Zhang , Baowen Li

The Letter is devoted to new frequencies generation and its role in the synchronization of two spatially separated polariton condensates affected by the coherent pump with the frequency detuned from the frequencies of the condensates. We…

Optics · Physics 2025-12-11 Alexey V Yulin

Resonant photoelastic coupling in semiconductor nanostructures opens new perspectives for strongly enhanced light-sound interaction in optomechanical resonators. One potential problem, however, is the reduction of the cavity Q-factor…

Mesoscale and Nanoscale Physics · Physics 2014-11-19 G. Rozas , A. E. Bruchhausen , A. Fainstein , B. Jusserand , A. Lemaître

We study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the…

Coupling to phonon modes is a primary mechanism of excitonic dephasing and energy loss in semiconductors. However, low-energy phonons in colloidal quantum dots and their coupling to excitons are poorly understood, since their experimental…

Mesoscale and Nanoscale Physics · Physics 2019-10-22 Albert Liu , Diogo B. Almeida , Wan-Ki Bae , Lazaro A. Padilha , Steven T. Cundiff

The near-field interaction due to a strong electromagnetic field induced by resonant localized plasmons can result in a strong coupling of excitonic states or formation of hybrid exciton-plasmon modes in quantum confined structures. This…

Mesoscale and Nanoscale Physics · Physics 2019-04-01 Yuba Poudel , Gary N. Lim , Mojtaba Moazzezi , Zachariah Hennighausen , Yuri Rostovtsev , Francis DSouza , Swastik Kar , Arup Neogi

Strongly coupled plasmon-exciton systems offer promising applications in nanooptics. The classification of the coupling regime is currently debated both from experimental and theoretical perspectives. We present a method to unambiguously…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 Felix Stete , Wouter Koopman , Matias Bargheer

Coupled nanomechanical resonators are interesting for both fundamental studies and practical applications as they offer rich and tunable oscillation dynamics. At present, the mechanical coupling in such systems is often mediated by a fixed…

Mesoscale and Nanoscale Physics · Physics 2020-11-10 G. J. Verbiest , M. Goldsche , J. Sonntag , T. Khodkov , N. von den Driesch , D. Buca , C. Stampfer

Highly spatially-squeezed polaritons, with propagation momentum significantly larger than free-space modes at the same frequency, enable varied and extreme control over light-matter interaction. Compared to other polaritons, surface magnon…

Mesoscale and Nanoscale Physics · Physics 2023-04-20 Chen Qian , Jicheng Jin , Thomas Christensen , Li He , Anthony Sigillito , Eugene J. Mele , Bo Zhen

We report on the resonant coupling between localized surface plasmon resonances (LSPRs) in nanostructured Ag films, and an adsorbed monolayer of Rhodamine 6G dye. Hybridization of the plasmons and molecular excitons creates new coupled…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 N. I. Cade , T. Ritman-Meer , D. Richards

Phonon localization is a phenomenon that influences numerous material properties in condensed matter physics. Anderson localization brings rise to localized atomic-scale phonon interferences in disordered lattices with an influence limited…

Mesoscale and Nanoscale Physics · Physics 2024-12-31 Albert Beardo , Paul Desmarchelier , Chia-Nien Tsai , Prajit Rawte , Konstantinos Termentzidis , Mahmoud I. Hussein

Vibrational modes in mechanical resonators provide a promising candidate to interface and manipulate classical and quantum information. The observation of coherent dynamics between distant mechanical resonators can be a key step towards…

Mesoscale and Nanoscale Physics · Physics 2020-03-04 Zhuo-Zhi Zhang , Xiang-Xiang Song , Gang Luo , Zi-Jia Su , Kai-Long Wang , Gang Cao , Hai-Ou Li , Ming Xiao , Guang-Can Guo , Lin Tian , Guang-Wei Deng , Guo-Ping Guo

We demonstrate how to exploit long-cell polytypes of silicon carbide to achieve strong coupling between transverse phonon polaritons and zone folded longitudinal optical phonons. The resulting quasiparticles possess hybrid longitudinal and…

Phonons, the quanta of vibrations, are very important for the equilibrium and dynamical properties of matter. GHz coherent phonons can also interact with and act as interconnects in a wide range of quantum systems. Harnessing and tailoring…

Semiconductor nanoparticles and nanostructures in the strong coupling regime exhibit an intriguing energy scale in the optical frequencies, which is specified by the Rabi splitting between the upper and lower exciton-polariton states.…

Optics · Physics 2019-11-19 Burak Gerislioglu , Arash Ahmadivand

Acoustic vibrations at the nanoscale (GHz-THz frequencies) and their interactions with electrons, photons and other excitations are the heart of an emerging field in physics: nanophononics. The design of ultrahigh frequency acoustic-phonon…

Mesoscale and Nanoscale Physics · Physics 2018-06-13 N. D. Lanzillotti-Kimura , K. P. O'Brien , J. Rho , H. Suchowski , X. Yin , X. Zhang

Semiconductor microcavities, in which strong coupling of excitons to confined photon modes leads to the formation of exciton-polariton modes, have increasingly become a focus for the study of spontaneous coherence, lasing, and condensation…

Strongly Correlated Electrons · Physics 2007-05-23 J. Keeling , F. M. Marchetti , M. H. Szymanska , P. B. Littlewood

We describe a scheme that enables a strong coherent coupling between a topological qubit and the quantized motion of a magnetized nanomechanical resonator. This coupling is achieved by attaching an array of magnetic tips to a namomechanical…

Quantum Physics · Physics 2015-06-12 Fang-Yu Hong , Huiqin Qian , Jing-Li Fu , Zhi-Yan Zhu , Li-zhen Jiang

We theoretically study resonance responses of flat surfaces and sharp edges of the nanostructures that support excitations of phonon-polaritons in mid-infrared range. We focus on two materials: silicon carbide that has a nearly isotropic…

Optics · Physics 2017-09-20 Viktoriia E. Babicheva

A double-layer Kerr resonator in which both coupled modes are excited and interact with each other via incoherent cross-phase modulation is investigated to reveal stable localized solutions beyond the usual formation mechanism involving a…

Optics · Physics 2016-12-19 Antoine Bois , Joyce K. S. Poon