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Related papers: A new theoretical model of optical pumped solid-st…

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Following the method of Victor V. Kozlov et al.[PhysRevA. 74. 063829],we inspect the coherence induced by incoherent pump and spontaneous decay process in $\Lambda$ type three-level atomic system with degenerated lower duplicate levels. The…

Quantum Physics · Physics 2009-11-13 Bao-Quan Ou , Lin-Mei Liang , Cheng-Zu Li

We present one-dimensional numerical simulations describing the behavior of solid matter exposed to subpicosecond near infrared pulsed laser radiation. We point out to the role of strong isochoric heating as a mechanism for producing highly…

Other Condensed Matter · Physics 2007-05-23 Jean-Philippe Colombier , Patrick Combis , Razvan Stoian , Eric Audouard

Being beneficial for the amplitude modulation of the pump laser, we propose a simple yet surprisingly effective mechanical squeezing scheme in a standard optomechanical system. By merely introducing a specific kind of periodic modulation…

Quantum Physics · Physics 2020-06-24 Cheng-Hua Bai , Dong-Yang Wang , Shou Zhang , Shutian Liu , Hong-Fu Wang

Recent times have seen surge of research activity on systems combining fluid mechanics and electromagnetic fields. In radiation optics, whenever information about the distribution of pressure in a dielectric fluid is required, the…

Fluid Dynamics · Physics 2012-03-05 Simen Å. Ellingsen , Iver Brevik

We present temporal information obtained by mass spectrometry techniques about the evolution of plasmas generated by laser filamentation in air. The experimental setup used in this work allowed us to study not only the dynamics of the…

The dynamics of spherical laser-induced cavitation bubbles in water is investigated by plasma photography, time-resolved shadowgraphs, and single-shot probe beam scattering enabling to portray the transition from initial nonlinear to late…

Fluid Dynamics · Physics 2022-04-27 Xiao-Xuan Liang , Norbert Linz , Sebastian Freidank , Guenther Paltauf , Alfred Vogel

The increasing availability of high-power Yb-based ultrafast laser-amplifier systems has opened the possibility of air filamentation at high repetition rates >1 kHz. In this new regime, accumulation effects cannot be ruled out, therefore,…

We propose a model, based on a quantum stochastic differential equation (QSDE), to describe the scattering of polarized laser light by an atomic gas. The gauge terms in the QSDE account for the direct scattering of the laser light into…

Quantum Physics · Physics 2013-05-29 Luc Bouten , John K. Stockton , Gopal Sarma , Hideo Mabuchi

We present an ab-initio treatment of the steady-state of lasers with injected signals that describes a regime, valid for micro lasers, in which the locking transition is dominated by cross-saturation and spatial hole-burning. The theory…

Optics · Physics 2014-08-06 Alexander Cerjan , A. Douglas Stone

Understanding and controlling the electronic as well as ro-vibrational motion and, thus, the entire chemical dynamics in molecules is the ultimate goal of ultrafast laser and imaging science. In photochemistry, laser-induced dissociation…

We investigate the response of a polariton laser driven slightly off-resonantly using light fields differing from the routinely studied coherent pump sources. The response to driving light fields with thermal and displaced thermal…

Mesoscale and Nanoscale Physics · Physics 2015-05-21 Marc Assmann , Manfred Bayer

Motivated by experiments employing ps-long, kilojoule laser pulses, we examined x-ray emission in a finite-length underdense plasma irradiated by such a pulse using two dimensional particle-in-cell simulations. We found that, in addition to…

Plasma Physics · Physics 2024-06-10 I-Lin Yeh , Kavin Tangtartharakul , Hongmei Tang , Louise Willingale , Alexey Arefiev

Collective off resonant scattering of coherent light by a cold gas induces long-range interactions via interference of light scattered by different particles. In a 1D configuration these interactions grow particularly strong for particles…

Quantum Physics · Physics 2015-06-15 Tobias Grießer , Helmut Ritsch

Distributed feedback (DFB) dye lasing by polarization modulation is studied theoretically on the basis of modified rate equations. Numerical solution of these equations allows to obtain the generated power dynamics and the dependence of…

We present a multimode treatment of the optical parametric oscillator, which is valid for both pulsed and continuous-wave pump fields. The two-time correlation functions of the output field are derived, and we apply the theory to analyze a…

Quantum Physics · Physics 2007-09-30 Anne E. B. Nielsen , Klaus Molmer

Experiments to study the light emission from plasma produced by particle beams are presented. Fundamental aspects in comparison with discharge plasma formation are discussed. It is shown that the formation of excimer molecules is an…

Plasma Physics · Physics 2015-11-30 A. Ulrich

We present a quantum dynamic study on organic lasing phenomena, which is a challenging issue in organic optoelectronics. Previously, phenomenological method has achieved success in describing experimental observation. However, it cannot…

Chemical Physics · Physics 2023-08-07 Bin Zhang , Zhigang Shuai

We formulate the problem of a two-level system in a linearly polarized laser field in terms of a nonlinear Riccati-type differential equation and solve the equation analytically in time intervals much shorter than half the optical period.…

Quantum Physics · Physics 2007-05-23 R. Parzynski , M. Sobczak , A. Plucinska

We study a class of random processes on $N$ particles which can be interpreted as stochastic model of luminescence. Each particle can stay in one of two states: Excited state or ground state. Any particle at ground state is excited with a…

Probability · Mathematics 2018-10-31 E. Pechersky , S. Pirogov , G. M. Schütz , A. Vladimirov , A. Yambartsev

A detailed study of the effects of phase fluctuation and dephasing on the dynamics of the entanglement generated from a coherently pumped correlated emission laser is presented. It is found that the time evolution of the entanglement is…

Quantum Physics · Physics 2015-05-27 Sintayehu tesfa