Stimulated resonance Raman scattering (review)

Bobovich, Yakov S.; Bortkevich, A. V.

doi:10.1070/qe1977v007n03abeh009442

Cited by 6 publications

(2 citation statements)

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“…One should notice that in MSM with uniformly distributed scattering there is matching of location not only in the three mentioned regions but area of SRS radiation spreading, which promotes RL and SRS coupling in addition to. Optimal condition of the coupling in this MSM is the reason of SRS threshold reduction by three orders relative to similar effect in [17] where SRS is manifested jointly with conventional lasing in homogeneous frozen solution.…”

Section: Resultsmentioning

confidence: 82%

Coupled effect of stimulated Raman scattering and random lasing of dyes in multiple scattering medium

Yashchuk

2015

Laser Phys.

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Random lasing (RL) and stimulated Raman scattering (SRS) of dye in multiple scattering media (MSM) appears simultaneously and each couple with other. This coupling has considerable influence on the SRS regularities of dye in MSM. The main feature of this impact is that RL radiation promotes the Raman lines revealing in the RL spectrum range as part of total radiation. SRS initiation occurs owing to the CARS-like mechanism provided by the two component pump: incident monochromatic radiation (laser pump) and RL radiation arising inside the MSM. It leads to important consequences: the RL spectrum must overlap with the spectral region of the possible Stokes lines of the dye; only those Stokes lines appear which are in a range of the RL spectrum; all conditions which promote RL assist SRS also. It is shown MSM promotes the best conditions for SRS and RL coupling due to optimal matching of RL localization regions and pump radiation.

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Section: Resultsmentioning

confidence: 82%

Coupled effect of stimulated Raman scattering and random lasing of dyes in multiple scattering medium

Yashchuk

2015

Laser Phys.

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“…Resonance enhancement of Raman scattering occurs when an electronic transition is triggered by the excitation laser. The electronic excitation increases the Raman scattering probability of vibrational normal modes in the spatial vicinity of the chromophore, hence enhancing these signals in the resulting spectrum . The RR enhancement couples with surface plasmon enhancement, resulting in a very strong enhancement of certain signals, known as surface enhanced resonance Raman scattering (SERRS). , SERRS measurements are of course only possible when there is frequency overlap between the electronic transition of the sample and the surface plasmon resonance of the nanoparticles in question.…”

Section: Introductionmentioning

confidence: 99%

Resonance Raman Optical Activity and Surface Enhanced Resonance Raman Optical Activity Analysis of Cytochrome c

2007

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High-resolution resonance Raman (RR) and resonance Raman optical activity (ROA) spectra of cytochrome c were obtained in order to perform full assignment of spectral features of the resonance ROA spectrum. The resonance ROA spectrum of cytochrome c revealed a distinct spectral signature pattern due to resonance enhanced skeletal porphyrin vibrations, more pronounced than any contribution from the protein backbone. Combining the intrinsic resonance properties of cytochrome c with the surface plasmon enhancement achieved with colloidal silver particles, the surface enhanced resonance Raman scattering (SERRS) and surface enhanced resonance ROA (SERROA) spectra of the protein were successfully obtained at concentrations as low as 1 microM. The assignments of spectral features were based on the information obtained from the RR and resonance ROA spectra. Excellent agreement between RR and SERRS spectra is reported, while some disparities were observed between the resonance ROA and SERROA spectra. These differences can be ascribed to perturbations of the physical properties of the protein upon adhesion to the surface of the silver colloids.

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Time-Resolved Studies of Excited Molecules

Tramer

Voltz²

1979

Excited States

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Stimulated resonance Raman scattering (review)

Cited by 6 publications

References 2 publications

Coupled effect of stimulated Raman scattering and random lasing of dyes in multiple scattering medium

Coupled effect of stimulated Raman scattering and random lasing of dyes in multiple scattering medium

Resonance Raman Optical Activity and Surface Enhanced Resonance Raman Optical Activity Analysis of Cytochrome c

Time-Resolved Studies of Excited Molecules

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