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We present a self-consistent quantum optics approach to calculating the surface enhanced Raman spectrum of molecules coupled to arbitrarily shaped plasmonic systems. Our treatment is intuitive to use and provides fresh analytical insight…

Optics · Physics 2017-06-26 Mohsen Kamandar Dezfouli , Stephen Hughes

We present the results of an experimental and numerical investigation into temporally non-local coherent interactions between ultrashort pulses, mediated by Raman coherence, in gas-filled kagom\'{e}-style hollow-core photonic crystal fiber.…

Nonstationary molecular states which contain electronic coherences can be impulsively created and manipulated by using recently-developed ultrashort optical and X-ray pulses via photoexcitation, photoionization and Auger processes. We…

Chemical Physics · Physics 2015-09-02 Konstantin E. Dorfman , Kochise Bennett , Shaul Mukamel

Nonclassicality is studied through a quasidistribution of phases for the Raman process under both weak and strong pump conditions. In the former case, the solution is applicable to both resonant and off-resonant Raman processes, while…

Quantum Physics · Physics 2020-02-19 Kishore Thapliyal , Jan Perina

We study the dynamics of multipulse solutions in mode-locked lasers in presence of time-delayed feedback stemming, e.g., from reflections upon optical elements, and carrier dynamics. We demonstrate that the dynamics of such a high…

Pattern Formation and Solitons · Physics 2025-03-21 Thomas G. Seidel , Julien Javaloyes , Svetlana V. Gurevich

We experimentally demonstrate efficient Raman conversion to respective Stokes and anti-Stokes fields in both pulsed and continuous modes with a Rb-87 atomic vapor cell. The conversion efficiency is about 40-50% for the Stokes field and…

Atomic Physics · Physics 2012-10-19 Bing Chen , Kai Zhang , Chun-Hua Yuan , Chengling Bian , Cheng Qiu , L. Q. Chen , Z. Y. Ou , Weiping Zhang

Coherent conversion between a Raman pump field and its Stokes field is observed in a Raman process with a strong atomic spin wave initially prepared by another Raman process operated in the stimulated emission regime. The oscillatory…

Quantum Physics · Physics 2015-05-19 L. Q. Chen , Guo-Wan Zhang , Cheng-ling Bian , Chun-Hua Yuan , Z. Y. Ou , Weiping Zhang

We investigate quantum correlations in continuous wave polarization squeezed laser light generated from one and two optical parametric amplifiers, respectively. A general expression of how Stokes operator variances decompose into two mode…

Synchronization with noise is important for understanding biophysical processes at nano- and micro-meter scales, such as neuronal firing and flagellar rotations. To understand the energetics of these processes, stochastic thermodynamics…

Adaptation and Self-Organizing Systems · Physics 2025-03-28 Jing Qin , Nariya Uchida

The entrainment between weakly-coupled nonlinear oscillators, as well as between complex signals such as those representing physiological activity, is frequently assessed in terms of whether a stable relationship is detectable between the…

Neurons and Cognition · Quantitative Biology 2019-02-27 Ludovico Minati , Natsue Yoshimura , Mattia Frasca , Stanislaw Drozdz , Yasuharu Koike

We report on the generation of a Raman cascade spanning the wavelength range of 523 to 1750 nm wavelength range, in a standard telecommunication graded-index multimode optical fiber. Despite the highly multimode nature of the pump, the…

Optics · Physics 2013-12-13 Hamed Pourbeyram , Govind P. Agrawal , Arash Mafi

Many protocols for long distance quantum communication require interferometric phase stability over long distances of optical fibers. In this paper we investigate the phase noise in long optical fibers both in laboratory environment and in…

Quantum Physics · Physics 2008-08-22 Jiří Minář , Hugues de Riedmatten , Christoph Simon , Hugo Zbinden , Nicolas Gisin

We report the experimental evidence of noise-induced phase synchronization in a vertical cavity laser. The polarized laser emission is entrained with the input periodic pump modulation when an optimal amount of white, gaussian noise is…

Statistical Mechanics · Physics 2009-11-10 S. Barbay , G. Giacomelli , S. Lepri , A. Zavatta

Stimulated Raman scattering (SRS) in its strongly nonlinear, kinetic regime is controlled by a technique of deterministic, strong temporal modulation and spatial scrambling of laser speckle patterns, called Spike Trains of Uneven Duration…

Plasma Physics · Physics 2015-06-15 B. J. Albright , L. Yin , B. Afeyan

In its usual implementation, the Raman amplifier features only one pump carrier frequency. However, pulses with well-separated frequencies can also be Raman amplified while compressed in time. Amplification with frequency-separated pumps is…

Plasma Physics · Physics 2018-04-04 Ido Barth , Nathaniel J. Fisch

The phase-space of a simple synchronization model is thoroughly investigated. The model considers two-mode stochastic oscillators, coupled through a pulse-like interaction controlled by simple optimization rules. A complex phase space is…

Adaptation and Self-Organizing Systems · Physics 2020-12-03 Szabolcs Horvát , Zoltán Néda

We apply the theory of high-order harmonic generation by low-frequency laser fields in the strong field approximation to the study of the spatial and temporal coherence properties of the harmonics. We discuss the role of dynamically induced…

Quantum Physics · Physics 2007-05-23 Pascal Salières , Anne L'Huillier , Philippe Antoine , Maciej Lewenstein

Raman phonons are quantized molecular motions that arise from the inelastic scattering of light and mediate a wide range of spectroscopic and nonlinear optical phenomena. These can play a major role in frequency-conversion processes, but…

Optics · Physics 2026-05-01 Yi-Hao Chen , Frank Wise

A theoretical model describing the Raman scattering process in atomic vapors is constructed. The treatment investigates the low-excitation regime suitable for modern experimental applications. Despite the incorporated decoherence effects…

Quantum Physics · Physics 2012-07-16 Jan Kolodynski , Jan Chwedenczuk , Wojciech Wasilewski

Time-resolved spontaneous Raman spectroscopy serves as a probe for incoherent quasiparticle and collective excitation dynamics, and allows to distinguish symmetry changes across a photoinduced phase transition through the inelastic light…

Materials Science · Physics 2019-03-27 J. Zhu , R. B. Versteeg , P. Padmanabhan , P. H. M. van Loosdrecht