Raman scattering


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Raman scattering

[′räm·ən ‚skad·ə·riŋ]
(optics)
References in periodicals archive ?
Highly sensitive DNA methylation analysis at CpG resolution by surface-enhanced Raman scattering via ligase chain reaction.
The new technique developed by Brasselet and her research team makes use of a nonlinear effect called coherent Raman scattering that occurs when light interacts with molecules.
They also demonstrated that the probe could acquire separate coherent anti-stokes Raman scattering, second harmonic generation and two-photon excited autofluorescence images of healthy human skin tissue samples with a resolution of 2048 by 2048 pixels for a scanned area of 300 by 300 microns.
The system was found to emit stimulated Raman scattering (SRS) signals when irradiated by the laser light and which corresponded to 2957 cm-1 Raman mode of s (C-H) of O-CH3 with s (C-H) of a-CH3 and a (CH2).
To start, the team sought to detect serum-based antigens using surface-enhanced Raman scattering (SERS) in immunoassays.
Although these shorter excitation wavelengths have a strong Raman scattering, they are also affected by fluorescence interference which increases background intensity.
Selective resonant Raman scattering was utilized to investigate the phase segregation range; 3.
This phenomenon has been employed in chemical and biological detection techniques such as surface-enhanced Raman scattering and enhanced fluorescence spectroscopy.
Nonlinear effects within optical fiber such as stimulated Raman scattering, stimulated Brillouin scattering or stimulated four-photon mixing may also be employed to provide optical amplification by injecting a high-power laser beam into optical fiber.
And in the Raman space, a technique called surface-enhanced Raman scattering (SERS) takes advantage of small-scale electromagnetic effects to "boost" the Raman scale by a factor of 10 or more, helping Raman surpass the diffraction limit.
A second synchronized beam at 1041 nm is available for advanced imaging techniques, including uncaging, dual-wavelength simultaneous imaging, second-harmonic generation (SHG), third-harmonic generation (THG), coherent anti-Stokes Raman scattering (CARS), and stimulated Raman scattering (SRS) imaging.