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We propose a method for increasing the Raman scattering from an ensemble of molecules by up to four orders of magnitude. Our method requires an additional coherent source of IR radiation with the half-frequency of the Stokes shift. This…

Quantum Physics · Physics 2019-04-24 V. Yu. Shishkov , E. S. Andrianov , A. A. Pukhov , A. P. Vinogradov , A. A. Lisyansky

We simulate vibrational strong (VSC) and ultrastrong coupling (V-USC) for liquid water with classical molecular dynamics simulations. When the cavity modes are resonantly coupled to the O-H stretch mode of liquid water, the infrared…

Chemical Physics · Physics 2020-07-21 Tao E. Li , Joseph E. Subotnik , Abraham Nitzan

A gauge invariant theory for electronic Raman scattering for superconductors with anisotropic pairing symmetry is analyzed in detail. It is shown that Raman scattering in anisotropic superconductors provides a wealth of…

Condensed Matter · Physics 2009-10-22 T. P. Devereaux , D. Einzel

We have investigated theoretically a dissipative polariton system in the ultrastrong light-matter coupling regime without using the rotating-wave approximation on system-reservoir coupling. Photons in a cavity and excitations in matter…

Quantum Physics · Physics 2013-01-07 Motoaki Bamba , Tetsuo Ogawa

Recent experiments of chemical reactions in optical cavities have shown great promise to alter and steer chemical reactions but still remain poorly understood theoretically. In particular the origin of resonant effects between the cavity…

Chemical Physics · Physics 2022-12-21 Derek S. Wang , Johannes Flick , Susanne F. Yelin

Under vibrational strong coupling (VSC), the formation of molecular polaritons may significantly modify the photo-induced or thermal properties of molecules. In an effort to understand these intriguing modifications, both experimental and…

Chemical Physics · Physics 2022-04-07 Tao E. Li , Abraham Nitzan , Joseph E. Subotnik

Resonant Raman scattering of degenerate interacting two-channel quantum wire is studied. {\it All} collective excitations of two-channel quantum wire are shown to give rise to peaks in the polarized Raman spectra near resonance. If there…

Strongly Correlated Electrons · Physics 2009-11-07 Hyun C. Lee

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

This work sets a road-map towards an experimental realization of strong coupling between free-electrons and photons, and analytically explores entanglement phenomena that emerge in this regime. The proposed model unifies the strong-coupling…

Quantum Physics · Physics 2019-09-11 Ofer Kfir

We experimentally resolve the dispersion of multiple vibro-polariton modes issued from the strong coupling of different vibrational bands of the methylene group (CH2) in a 2.56$\mu$m thick polyethylene film with the confined modes of a…

Extending the idea of optical microcavities to sound waves, we propose a {\it phonon cavity} consisting of two semiconductor superlattices enclosing a spacer with thickness determined by the acoustic wavelength at the center of the first…

Condensed Matter · Physics 2009-11-07 M. Trigo , A. Bruchhausen , A. Fainstein , B. Jusserand , V. Thierry-Mieg

We develop a Hamiltonian formalism to study energy and position/momentum correlations between a single Stokes photon and a single material excitation that are created as a pair in the spontaneous Raman scattering process. Our approach…

Quantum Physics · Physics 2020-01-16 Kai Shinbrough , Yanting Teng , Bin Fang , Virginia O. Lorenz , Offir Cohen

Strong light-matter interactions in both the single-emitter and collective strong coupling regimes attract significant attention due to emerging quantum and nonlinear optics applications, as well as opportunities for modifying…

Mesoscale and Nanoscale Physics · Physics 2019-09-11 Tuomas P. Rossi , Timur Shegai , Paul Erhart , Tomasz J. Antosiewicz

We develop a theory for micro-Raman scattering by single and coupled two-donor states in silicon. We find the Raman spectra to have significant dependence on the donor exchange splitting and the relative spatial positions of the two donor…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Belita Koiller , Xuedong Hu , H. D. Drew , S. Das Sarma

Very efficient amplification of light-matter waves (polaritons), that are a superposition of cavity photons and excitons [1] has recently been reported[2-11]. The optical gain curve versus the pump power shows a threshold and then saturates…

Materials Science · Physics 2007-05-23 S. Savasta , O. Di Stefano , R. Girlanda

We demonstrate the dynamics of stimulated Raman scattering in designed high-Q/Vm silicon photonic band gap nanocavities through the coupled-mode theory framework towards optically-pumped silicon lasing. The interplay of other chi(3) effects…

Optics · Physics 2009-11-13 Xiaodong Yang , Chee Wei Wong

Vibrational polaritons form in a planar Fabry-Perot microcavity when a vibrational mode of a layer of molecules is near resonant with an infrared cavity mode. Herein, dispersion relations of vibrational polaritons are studied when the…

Chemical Physics · Physics 2024-06-18 Tao E. Li

The resonant scattering of surface plasmon-polariton waves by embedded semiconductor quantum dots above the dielectric/metal interface is explored in the strong-coupling regime. In contrast to non-resonant scattering by a localized…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Danhong Huang , Michelle Easter , Godfrey Gumbs , A. A. Maradudin , Shawn-Yu Lin , Dave Cardimona , Xiang Zhang

We theoretically demonstrate that chemical reaction rate constant can be significantly suppressed by coupling molecular vibrations with an optical cavity, exhibiting both the collective coupling effect and the cavity-frequency modification…

Chemical Physics · Physics 2022-01-26 Arkajit Mandal , Xinyang Li , Pengfei Huo

A signature of the scattering between microcavity polaritons and longitudinal optical phonons has been observed in the electroluminescence spectrum of an intersubband device operating in the light-matter strong coupling regime. By…

Mesoscale and Nanoscale Physics · Physics 2012-12-20 A. Delteil , A. Vasanelli , P. Jouy , D. Barate , J. C. Moreno , R. Teissier , A. N. Baranov , C. Sirtori