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Superradiant Raman scattering of Rubidium atoms has been explored in the experiment [Nature 484, 78 (2012)] to prove the concept of the superradiant laser, which attracts significant attentions in quantum metrology due to the expected…

Quantum Physics · Physics 2024-01-02 Huihui Yu , Yuan Zhang , Gang Chen , Chongxin Shan

Raman-gain-enhanced near-field optomechanical transduction between a movable optical cavity and SiN-membrane resonator is demonstrated. The Raman gain compensates for the intrinsic loss of the cavity and amplifies the optomechanical…

Optics · Physics 2024-02-14 Ryoko Sakuma , Motoki Asano , Hiroshi Yamaguchi , Hajime Okamoto

We report on measurements of visible extinction spectra of semicontinuous silver nanoshells grown on colloidal silica spheres. We find that thin, fractal shells below the percolation threshold exhibit geometrically tunable plasmon…

Optics · Physics 2009-11-11 Charles A. Rohde , Keisuke Hasegawa , Miriam Deutsch

Superscattering, induced by degenerate resonances, breaks the fundamental single-channel limit of scattering cross section of subwavelength structures; in principle, an arbitrarily large total cross section can be achieved via…

Classical Physics · Physics 2018-12-17 Chao Qian , Xiao Lin , Yi Yang , Xiaoyan Xiong , Huaping Wang , Erping Li , Ido Kaminer , Baile Zhang , Hongsheng Chen

Due to their many potential applications, there is an increasing interest in studying hybrid systems composed of optically active media and plasmonic metamaterials. In this work we focus on a particular system which consists of an optically…

Mesoscale and Nanoscale Physics · Physics 2016-11-09 Nicolás Passarelli , Raúl A. Bustos-Marún , Eduardo A. Coronado

We present an exact solution for electronic Raman scattering in a single-band, strongly correlated material, including nonresonant, resonant and mixed contributions. Results are derived for the spinless Falicov-Kimball model, employing…

Strongly Correlated Electrons · Physics 2007-05-23 A. M. Shvaika , O. Vorobyov , J. K. Freericks , T. P. Devereaux

Metamaterials and meta-surfaces represent a remarkably versatile platform for light manipulation, biological and chemical sensing, nonlinear optics, and even spaser lasing. Many of these applications rely on the resonant nature of…

Raman scattering on phonon--plasmon coupled modes in high magnetic fields is considered theoretically. The calculations of the dielectric function were performed in the long-wave approximation for the semiclassical and ultra-quantum…

Materials Science · Physics 2007-05-23 L. A. Falkovsky

A set of theoretical results on infrared absorption and inelastic (Raman) scattering of light in semiconductor quantum dots is reviewed. When it is possible, qualitative comparisons with recent experimental results are presented.

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Augusto Gonzalez , Alain Delgado

Conjugated metallic nanoparticles are a promising means to achieve ultrasensitive and multiplexed sensing in intact three-dimensional samples, especially for biological applications, via surface enhanced Raman scattering (SERS). We show…

The bonding configuration of the crater walls formed in urethane dimethacrylate-based polymer doped with plasmonic gold nanorods upon irradiation with a single-shot high-energy femtosecond laser pulse has been studied by Raman spectroscopy.…

Surface enhanced Raman spectroscopy, is a technique of fundamental importance to analytical science and technology where the amplified Raman spectrum of analytes is used for chemical fingerprinting. Here, we showcase an engineered…

Applied Physics · Physics 2021-06-08 K N Prajapati , Anoop A Nair , S Ravi P Silva , J Mitra

Integrating graphene with plasmonic nanostructures results in multifunctional hybrid systems with enhanced performance for numerous applications. In this work, we take advantage of the remarkable mechanical properties of graphene to combine…

Plasmonic dimer cavities can induce extreme electric-field hot spots that allow one to access ultrastrong coupling regimes using Raman-type spectroscopy on single vibrating molecules. Using a generalized master equation, we study resonant…

Quantum Physics · Physics 2021-07-29 Stephen Hughes , Alessio Settineri , Salvatore Savasta , Franco Nori

We studied the intensity of resonant Raman scattering due to optical phonons in a planar II-VI-type semiconductor microcavity in the regime of strong coupling between light and matter. Two different sets of independent experiments were…

Strongly Correlated Electrons · Physics 2009-10-20 A. Bruchhausen , L. M. Leon Hilario , A. A. Aligia , A. M. Lobos , A. Fainstein , B. Jusserand , R. Andre

The long-range action of surface-enhanced Raman scattering (SERS) is probed via distance-dependent measurements of molecular Raman spectra. To this end, identical SERS substrates composed of irregular silver nanoisland arrays were covered…

Materials Science · Physics 2015-06-12 V. I. Kukushkin , A. B. Van'kov , I. V. Kukushkin

We propose a new class of resonant electromagnetic structures, and study their response to free-space illumination. The structures consist of partial cylindrical shells that have cloaking material properties proposed by Pendry et al. These…

Optics · Physics 2015-05-13 E. P. Furlani , A. Baev

Silver nanoparticles dispersed on the surface of an inverted GaN LED were found to plasmonically enhance the near-bandedge emission. The resonant surface plasmon coupling led to a significant enhancement in the exciton decay rate and the…

The Raman effect -- inelastic scattering of light by lattice vibrations (phonons) -- produces an optical response closely tied to a material's crystal structure. Here we show that resonant optical excitation of IR and Raman phonons gives…

Materials Science · Physics 2021-07-07 Guru Khalsa , Nicole A. Benedek , Jeffrey Moses

It is well-known that classical optical cavities can exhibit localized phenomena associated to scattering resonances, leading to numerical instabilities in approximating the solution. This result can be established via the ``quasimodes to…

Analysis of PDEs · Mathematics 2022-12-07 Camille Carvalho , Zoïs Moitier
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