English
Related papers

Related papers: Measurement of Stimulated Raman Side-Scattering Pr…

200 papers

Recently, the verification of stimulated Raman side-scattering (SRSS) in different laser inertial confinement fusion ignition schemes poses an underlying risk of SRSS on ignition. In this paper, we propose a method to use the non-uniform…

Plasma Physics · Physics 2023-05-12 Xiaobao Jia , Qing Jia , Rui Yan , Jian Zheng

We revisit laser intensity noise in the context of stimulated Raman scattering (SRS), which has recently proved to be a key technique to provide label free images of chemical bonds in biological and medical samples. Contrary to most…

Instrumentation and Detectors · Physics 2019-10-29 Xavier Audier , Sandro Heuke , Peter Volz , Ingo Rimke , Hervé Rigneault

The absolute growth of Stimulated Raman side scattering (SRSS) predicted by previous theories appeared to be surprisingly absent in the recent ignition-scale direct-drive experiments with the absence attributed to different reasons. We…

Plasma Physics · Physics 2025-03-26 F. -X. Zhou , C. -W. Lian , R. Yan , Y. Ji , J. Li , Q. Jia , J. Zheng

The random lasing (RL) emission of dyed vesicular polymeric films in diffusive regime of light propagation was investigated under helium temperature. It represents itself the coupling effect of stimulated emission and stimulated Raman…

Optics · Physics 2010-08-27 V. P. Yashchuk , E. A. Tikhonov , O. A. Prygodiuk

Stimulated Raman backscatter (SRS) is used as a remote sensor to quantify the instantaneous laser power after transfer from outer to inner cones that cross in a National Ignition Facility (NIF) gas-filled hohlraum plasma. By matching SRS…

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

Stimulated Raman scattering (SRS) represents a powerful tool for accessing the vibrational properties of molecular compounds or solid state systems. From a spectroscopic perspective, SRS is able to capture Raman spectra free from incoherent…

Stimulated Raman scattering (SRS) in plasma in the degenerate regime is studied theoretically and numerically. Different from normal SRS with the non-degenerate eigen electrostatic mode excited, the degenerate SRS is developed at plasma…

Plasma Physics · Physics 2022-03-25 Yao Zhao , Suming Weng , Zhengming Sheng , Jianqiang Zhu

The range of stimulated Raman scattering (SRS) frequencies covers a domain which at the low end abuts half the laser frequency, omega_0 / 2, according to the simplest SRS theories, corresponding to scatter from electron densities near 1/4…

Plasma Physics · Physics 2015-05-20 Harvey A. Rose , Philippe Mounaix

${}^{133}\mathrm{Ba}^+$ is illuminated by a laser that is far-detuned from optical transitions, and the resulting spontaneous Raman scattering rate is measured. The observed scattering rate is lower than previous theoretical estimates. The…

Spatial distributions of electrons ionized and scattered from ultra-low pressure gases are proposed and experimentally demonstrated as a method to directly measure the intensity of an ultra-high intensity laser pulse. Analytic models…

We report results and modelling of an experiment performed at the TAW Vulcan laser facility, aimed at investigating laser-plasma interaction in conditions which are of interest for the Shock Ignition scheme to Inertial Confinement Fusion,…

Raman scattering is the inelastic process where photons bounce off molecules, losing energy and becoming red-shifted. This weak effect is unique to each molecular species, making it an essential tool in e.g. spectroscopy and label-free…

Stimulated Raman scattering is a well-known nonlinear process that can be harnessed to produce optical gain in a wide variety of media. This effect has been used to produce the first silicon-based lasers and high-gain amplifiers.…

Optics · Physics 2008-10-13 D. R. Solli , P. Koonath , B. Jalali

While naively laser only causes excitation of external target, e.g. Rabi cycle, STED microscopy or ASE/SASE/SSA demonstrate it can also stimulate its deexitation, however, under uncommon condition of being prepared as excited. These two…

General Physics · Physics 2025-12-16 Jarek Duda

The physical processes associated with propagation of a high-power (power > critical power for self-focusing) laser beam in water include nonlinear focusing, stimulated Raman scattering (SRS), optical breakdown and plasma formation. The…

Stimulated Raman scattering, employing a pump and a Stokes beam, exhibits itself through both the Raman loss observed in the pump beam and the Raman gain in the Stokes beam. This phenomenon finds application in spectroscopy for chemical…

Optics · Physics 2024-08-13 Minhaeng Cho

We present the first experimental evidence of stimulated Raman re-scattering of a laser in plasma: The scattered light produced by the Raman instability is intense enough to scatter again through the same instability. Although never…

Plasma Physics · Physics 2025-05-06 J. -R. Marquès , F. Pérez , P. Loiseau , L. Lancia , C. Briand , S. Depierreux , M. Grech , C. Riconda

The principle and experimental realization of a novel Raman spectroscopic technique entitled stimulated Raman phase shift (SRPS) spectroscopy was demonstrated. This technique depends on the measurement of the stimulated Raman scattering…

Optics · Physics 2024-03-07 Meng Qi , Wenrong Wang , Yuan-ji Li , Jin-xia Feng , Kuan-shou Zhang

We show via particle-in-cell simulations that small normalized magnetic fields ($\omega_c/\omega_p \ll 1$) applied perpendicularly to a light wave can significantly modify the evolution of backward stimulated Raman scattering (SRS) in the…

Plasma Physics · Physics 2018-11-07 B. J. Winjum , F. S. Tsung , W. B. Mori
‹ Prev 1 2 3 10 Next ›