Results 21 to 30 of about 41,857 (210)

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

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

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

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

Stimulated Raman scattering of water maser lines in astrophysical plasmas [PDF]

open access: yes, 1999
Radiative transfer equations are derived and solved for the stimulated Raman scattering of water maser lines in the astrophysical plasmas with electron density of about 10^6 - 10^7 cm-3.
Fernandez C.   +6 more
core   +2 more sources

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

Control of Raman Lasing in the Nonimpulsive Regime [PDF]

open access: yes, 2003
We explore coherent control of stimulated Raman scattering in the nonimpulsive regime. Optical pulse shaping of the coherent pump field leads to control over the stimulated Raman output.
A. M. Weiner   +9 more
core   +1 more source

Phase aspects of (broadband) stimulated Raman scattering

open access: yesReviews in Analytical Chemistry, 2012
The phase of the molecular response can be exploited to improve selectivity without sacrificing speed in both narrowband and broadband coherent anti-Stokes Raman scattering (CARS) microscopy, both of which will be considered in this review of the work ...
Offerhaus Herman L.   +4 more
doaj   +1 more source

Switchable stimulated Raman scattering microscopy with photochromic vibrational probes

open access: yesNature Communications, 2021
Probes with reversible fluorescence are useful in super-resolution microscopy, but lack sufficient chemical specificity. Here, the authors engineer alkyne tagged diarylethene to realize photo-switchable stimulated Raman scattering probes with high ...
Jianpeng Ao   +7 more
doaj   +1 more source

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