Results 21 to 30 of about 42,660 (292)

Tunable Stokes Laser Based on KTiOPO4 Crystal

open access: yesCrystals, 2020
The characteristics of a tunable Stokes laser based on the cascaded stimulated polariton scattering and stimulated Raman scattering in KTiOPO4 crystal were studied experimentally and theoretically.
Zecheng Wang   +7 more
doaj   +1 more source

Competing Inversion-Based Lasing and Raman Lasing in Doped Silicon

open access: yesPhysical Review X, 2018
We report on an optically pumped laser where photons are simultaneously generated by population inversion and by stimulated Raman scattering in the same active medium, namely crystalline silicon doped by bismuth (Si∶Bi).
S. G. Pavlov   +8 more
doaj   +1 more source

Stimulated Raman Microscopy Implemented by Three Femtosecond Laser Sources [PDF]

open access: yesEPJ Web of Conferences, 2021
In this work, the implementation of a femtosecond Stimulated Raman Scattering microscope, equipped with three femtosecond laser sources: a Titanium-Sapphire (Ti:Sa), an optical parametric oscillator (OPO), and a second harmonic generator (SHG); is ...
Ranjan Rajeev   +2 more
doaj   +1 more source

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

open access: yes, 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   +10 more
core   +1 more source

Shot-Noise Limited Time-Encoded Raman Spectroscopy

open access: yesJournal of Spectroscopy, 2017
Raman scattering, an inelastic scattering mechanism, provides information about molecular excitation energies and can be used to identify chemical compounds.
Sebastian Karpf   +4 more
doaj   +1 more source

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

open access: yes, 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.   +5 more
core   +2 more sources

Suppressing stimulated Raman side-scattering with vector light

open access: yesMatter and Radiation at Extremes, 2023
Recent observations of stimulated Raman side-scattering (SRSS) in different laser inertial confinement fusion ignition schemes have revealed that there is an underlying risk of SRSS on ignition. In this paper, we propose a method that uses the nonuniform
Xiaobao Jia   +3 more
doaj   +1 more source

Atmosphere Activity Measurement by LED Raman Mini Lidar [PDF]

open access: yesEPJ Web of Conferences, 2020
The LED mini lidar was improved to monitor Raman scattering echoes. The Raman scattering signal indicates a certain gas concentration and it can distinguish the target from the other materials.
Shiina Tatsuo
doaj   +1 more source

Generation of frequency shifted picosecond pulses with low temporal jitter [PDF]

open access: yes, 1984
Transient stimulated Raman scattering is used for the generation of a frequency shifted picosecond light pulse; part of this Raman shifted pulse is subsequently coherently scattered at a material excitation of a second Raman cell.
Carman   +10 more
core   +1 more source

Enhancement of field generation via maximal atomic coherence prepared by fast adiabatic passage in Rb vapor [PDF]

open access: yes, 2003
We have experimentally demonstrated the enhancement of coherent Raman scattering in Rb atomic vapor by exciting atomic coherence with fractional stimulated Raman adiabatic passage.
A. B. Matsko   +15 more
core   +3 more sources

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