Results 41 to 50 of about 41,988 (200)

Role of spatiotemporal couplings in stimulated Raman side scattering

Physical Review Research, 2023
A high-intensity laser pulse propagating through underdense plasma is prone to parametric instabilities. We report on experiments investigating the influence of a pulse-front tilt (PFT), one of the most common spatiotemporal couplings in the laser focus,
C. Zepter, A. Seidel, M. Zepf, M. C. Kaluza, A. Sävert   +4 more
doaj   +1 more source

Nanoscale nonreciprocity via photon-spin-polarized stimulated Raman scattering

Nature Communications, 2019
Here, the authors introduce and study theoretically and numerically a scheme for breaking time-reversal symmetry and achieving nonreciprocity on the nanoscale, using spin-selective stimulated Raman scattering. These results could pave the way for compact
Mark Lawrence, Jennifer A. Dionne
doaj   +1 more source

Stimulated Raman scattering microscopy for rapid brain tumor histology [PDF]

Journal of Innovative Optical Health Sciences, 2017
Rapid histology of brain tissues with sufficient diagnostic information has the great potential to aid neurosurgeons during operations. Stimulated Raman Scattering (SRS) microscopy is an emerging label-free imaging technique, with the intrinsic chemical ...
Yifan Yang, Lingchao Chen, Minbiao Ji
doaj   +1 more source

Ultralow-threshold microcavity Raman laser on a microelectronic chip [PDF]

, 2004
Using ultrahigh-Q toroid microcavities on a chip, we demonstrate a monolithic microcavity Raman laser. Cavity photon lifetimes in excess of 100 ns combined with mode volumes typically of less than 1000 µm^3 significantly reduce the threshold for ...
Armani, D. K., Kippenberg, T. J., Spillane, S. M., Vahala, K. J.   +3 more
core   +1 more source

Pulse Duration Compression by Two-Stage Stimulated Brillouin Scattering and Stimulated Raman Scattering

Photonics
A pulse duration compression technique that combines stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) was presented in this study, achieving an output pulse duration of 48.3 ps.
Xiaoyan Han, Zhaohong Liu, Shaowen Li, Sensen Li, Zhongwei Yang, Qiang Su, Yu Zhang, Bayanheshig, Yuanqin Xia, Yulei Wang, Zhiwei Lu   +10 more
doaj   +1 more source

Sum-frequency ionic Raman scattering

, 2018
In a recent report sum-frequency excitation of a Raman-active phonon was experimentally demonstrated for the first time. This mechanism is the sibling of impulsive stimulated Raman scattering, in which difference-frequency components of a light field ...
Juraschek, Dominik M., Maehrlein, Sebastian F.   +1 more
core   +1 more source

Stimulated Raman Scattering Microscopy: A Review

Photonics
Stimulated Raman scattering (SRS) microscopy is a high-speed imaging modality based on intrinsic molecular vibrations, producing chemical maps in living systems.
Rajeev Ranjan, Luigi Sirleto
doaj   +1 more source

Extracting quantum dynamics from genetic learning algorithms through principal control analysis [PDF]

, 2004
Genetic learning algorithms are widely used to control ultrafast optical pulse shapes for photo-induced quantum control of atoms and molecules. An unresolved issue is how to use the solutions found by these algorithms to learn about the system's quantum ...
B J Pearson, Davis L, Gordon R J, Holland J H, J L White, Jolliffe I T, P H Bucksbaum, Pearson B J, Peirce A P, Tannor D J, Tull J X   +10 more
core   +1 more source

Stimulated Raman scattering in an optical parametric oscillator based on periodically poled MgO-doped stoichiometric LiTaO3

, 2009
The evolution versus pump power of the spectrum of a singly resonant optical parametric oscillator based on an MgO-doped periodically poled stoichiometric lithium tantalate crystal is observed.
Bruner, C. Drag, F. Bretenaker, Harris, Henderson, Henderson, Hirohashi, Johnston, Melkonian, My, O. Mhibik, O. Robin, Okishev, Penna, Samanta, Samanta, Samanta, Strossner, T-H. My, Vainio   +19 more
core   +1 more source

Cavity-enhanced Raman Microscopy of Individual Carbon Nanotubes [PDF]

, 2016
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.
Hofmann, Matthias S., Hunger, David, Hänsch, Theodor W., Högele, Alexander, Hümmer, Thomas, Noe, Jonathan   +5 more
core   +2 more sources