نتایج جستجو برای: stimulated raman scattering

تعداد نتایج: 243135  

Journal: :Applied Physics Letters 2023

In this paper, we propose an approach for implementing quantum-enhanced stimulated Raman scattering (QESRS) microscopy using a dual-polarization scheme. This has advantages high-power operation and enables ultrasensitive detection of molecular vibrational mode symmetry. To demonstrate the feasibility effectiveness our technique, present both theoretical framework experimental results QESRS. Our...

2016
Thomas Hümmer Jonathan Noe Matthias S Hofmann Theodor W Hänsch Alexander Högele David Hunger

Raman spectroscopy reveals chemically specific information and provides label-free insight into the molecular world. However, the signals are intrinsically weak and call for enhancement techniques. Here, we demonstrate Purcell enhancement of Raman scattering in a tunable high-finesse microcavity, and utilize it for molecular diagnostics by combined Raman and absorption imaging. Studying individ...

Journal: :Optics letters 1993
Y S Kivshar B A Malomed

It is demonstrated that the stimulated Raman scattering in optical fibers supports kink solitons (shocks) not only in the recently considered case of anomalous dispersion but also in the normal-dispersion regime. In both cases there is a family of the kinks depending on an arbitrary (positive) wave number of the carrying wave. Although all the kinks are unstable because of the inherent instabil...

2005
R. Dekker E. J. Klein J. Niehusmann M. Först F. Ondracek J. Ctyroky N. Usechak A. Driessen

Self Phase Modulation (SPM) and Stimulated Raman Scattering (SRS) in silicon waveguides have been observed and will be discussed theoretically using a modified Nonlinear Schrödinger Equation. The high optical peak powers needed for the experiments were obtained by coupling sub-picosecond (200fs) transform limited pulses with a spectral width of 12nm into a single mode silicon waveguide. Spectra...

Journal: :Physical review letters 2013
B J Winjum J E Fahlen F S Tsung W B Mori

Using particle-in-cell simulations, we examine hot electron generation from electron plasma waves excited by stimulated Raman scattering and rescattering in the kinetic regime where the wave number times the Debye length (kλ(D)) is >/~0.3 for backscatter. We find that for laser and plasma conditions of possible relevance to experiments at the National Ignition Facility, anomalously energetic el...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید