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  2. Raman spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Raman_spectroscopy

    Energy-level diagram showing the states involved in Raman spectra. Raman spectroscopy (/ ˈ r ɑː m ən /) (named after physicist C. V. Raman) is a spectroscopic technique typically used to determine vibrational modes of molecules, although rotational and other low-frequency modes of systems may also be observed. [1]

  3. Rule of mutual exclusion - Wikipedia

    en.wikipedia.org/wiki/Rule_of_mutual_exclusion

    It states that no normal modes can be both Infrared and Raman active in a molecule that possesses a center of symmetry. This is a powerful application of group theory to vibrational spectroscopy, and allows one to easily detect the presence of this symmetry element by comparison of the IR and Raman spectra generated by the same molecule. [1]

  4. File:Pure Rotational Raman Spectrum (2).pdf - Wikipedia

    en.wikipedia.org/wiki/File:Pure_Rotational_Raman...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  5. Raman scattering - Wikipedia

    en.wikipedia.org/wiki/Raman_scattering

    Raman spectroscopy employs the Raman effect for substances analysis. The spectrum of the Raman-scattered light depends on the molecular constituents present and their state, allowing the spectrum to be used for material identification and analysis. Raman spectroscopy is used to analyze a wide range of materials, including gases, liquids, and ...

  6. Stimulated Raman spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Stimulated_Raman_spectroscopy

    Stimulated Raman spectroscopy, also referred to as stimulated Raman scattering (SRS), is a form of spectroscopy employed in physics, chemistry, biology, and other fields. . The basic mechanism resembles that of spontaneous Raman spectroscopy: a pump photon, of the angular frequency , which is scattered by a molecule has some small probability of inducing some vibrational (or rotational ...

  7. Selection rule - Wikipedia

    en.wikipedia.org/wiki/Selection_rule

    In Raman and infrared spectroscopy, the selection rules predict certain vibrational modes to have zero intensities in the Raman and/or the IR. [11] Displacements from the ideal structure can result in relaxation of the selection rules and appearance of these unexpected phonon modes in the spectra.

  8. Seminars in Cell & Developmental Biology

    images.huffingtonpost.com/2013-04-11-Molecular...

    T. Misaka / Seminars in Cell & Developmental Biology 24 (2013) 222–225 223 Fig. 1. The “miracle fruit”, R. dulcifica. to easily consume these foods due to the sweetness produced by

  9. Raman optical activity - Wikipedia

    en.wikipedia.org/wiki/Raman_optical_activity

    Raman optical activity spectroscopy is related to Raman spectroscopy and circular dichroism. Recent studies have shown how by using optical vortex light beams, a distinct type of Raman optical activity that is sensitive to the orbital angular momentum of the incident light is manifest.

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