Temperature dependence of stimulated raman scattering spectra in crystalline salts of inorganic acids

Kondilenko, I. I.; Korotkov, P. A.; Malyi, V. I.

doi:10.1007/bf00618923

Cited by 3 publications

(4 citation statements)

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“…[ 38,65 ] A finer structure of this band, however, does show up in suitable settings of stimulated and coherent Raman scattering. [ 36,38,52,68 ] The scatter chart in Figure 2a displays a representative polarization CARS spectrum of the 1305‐cm −1 vibration band of concentrated nitric acid as reported in refs. [36, 38].…”

Section: Super‐resolving Polarization Cars Spectroscopy Of the No2‐st...mentioning

confidence: 99%

Quantum resolution limit via coherent polarization Raman spectroscopy

Желтиков

2022

J Raman Spectroscopy

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As one of the milestones in early-era nonlinear Raman studies, Akhmanov et al. [Sov. Phys. JETP 47, 667 (1978)] and Koroteev et al. [Phys. Rev. Lett. 43, 398 (1979)] have demonstrated that polarization coherent anti-Stokes Raman scattering (CARS) spectroscopy can resolve overlapping spectral lines that cannot be resolved by means of spontaneous Raman scattering spectroscopy and argued that the resolution of this method is unlimited.Here, we show that information theory offers useful insights into this remarkable result. We demonstrate that spectral super-resolution attainable in polarization CARS can be understood in terms of the Fisher information and the pertinent Cramér-Rao lower bound. We show that, with a suitable polarization arrangement, coherent Raman scattering can be tailored to yield super-resolving spectral modes that provide a nonvanishing Fisher information even for deeply sub-Rayleigh spectral features, preventing the variance of spectral measurements from diverging no matter how fine these spectral features are. When the nonresonant coherent background scattering can be efficiently suppressed, the Fisher information of such superresolving modes reaches its upper bound as dictated by its quantum version-the quantum Fisher information.

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Section: Super‐resolving Polarization Cars Spectroscopy Of the No2‐st...mentioning

confidence: 99%

Quantum resolution limit via coherent polarization Raman spectroscopy

Желтиков

2022

J Raman Spectroscopy

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“…This shortcoming is avoided by using random Raman lasers in which the width of the emission spectrum can be 1-10 cm −1 (depending on the selected media). Also, in such lasers the generation can occur at several Stokes and anti-Stokes lines (simultaneously) which are frequency shifted relatively each other by hundreds or thousands of cm −1 [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Picosecond random Raman lasing in the spectral range of 360–630 nm using powders of potassium, sodium and strontium nitrates

Yu¹,

Skrabatun²,

Водчиц³

et al. 2023

Laser Phys. Lett.

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Stimulated Raman scattering (SRS) of picosecond laser radiation at 532 and 355 nm in microcrystalline powders of potassium, sodium, and strontium nitrates has been studied. One anti-Stokes and three Stokes components were generated in all samples when pumping at 532 nm. For the first time to our knowledge, random Raman lasing in the used nitrates has been obtained upon their excitation at 355 nm. In this case, the multifrequency Stokes SRS is also observed in all nitrates. We have analyzed all possible loss channels when ultraviolet radiation is used for excitation of SRS. In general, picosecond random SRS generation has been obtained at 19 spectral lines in the spectral range of 360–630 nm. In all cases, the SRS process is due to the internal symmetric mode of the (NO3)− ion with the frequency shifts of 1050 cm−1 (KNO3), 1069 cm−1 (NaNO3), and 1057 cm−1 (Sr(NO3)2).

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“…For the first time, information about the possibilities of SRS observation in single crystals and polycrystals of lead nitrate in the intramolecular mode of 1047 cm −1 was reported in [9,10]. The SRS in a Pb(NO 3 ) 2 single crystal on the 1047 cm −1 mode excited by the second optical harmonic of a neodymium laser with a pulse duration of 15 ns was reported in [9].…”

Section: Introductionmentioning

confidence: 99%

“…It was found that the efficiency of converting laser radiation into the Stokes components of SRS was more than the corresponding efficiency in calcium carbonate and sodium nitrate crystals, and was comparable with barium nitrate. In [10], SRS in polycrystalline lead nitrate pellets was excited by a powerful ruby laser pulse of 18-25 ns duration. In this work, a comparison was made between the SRS threshold in lead nitrate and the corresponding SRS threshold in liquid benzene.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous and stimulated Raman scattering in microcrystalline powder of lead nitrate

2020

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For the first time, stimulated Raman scattering was detected in a microcrystalline powder of lead nitrate under excitation by ultrashort (60 ps) pulses of a YAG:Nd 3+ laser operated at a wavelength of 532 nm. The stimulated Raman scattering of light on the lattice librational and full-symmetric (NO 3 )-ion modes was observed. The performed studies open the possibility for creating lasers based on stimulated Raman scattering in microcrystalline powders of inorganic compounds with various molecular groups.

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Temperature dependence of stimulated raman scattering spectra in crystalline salts of inorganic acids

Cited by 3 publications

References 0 publications

Quantum resolution limit via coherent polarization Raman spectroscopy

Quantum resolution limit via coherent polarization Raman spectroscopy

Picosecond random Raman lasing in the spectral range of 360–630 nm using powders of potassium, sodium and strontium nitrates

Spontaneous and stimulated Raman scattering in microcrystalline powder of lead nitrate

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