What does raman spectroscopy mean?
Definitions for raman spectroscopy
ra·man spec·troscopy
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Wiktionary
Raman spectroscopynoun
A form of spectroscopy that uses the Raman effect to study low-frequency vibrational and rotational modes of molecules .
Etymology: From Chandrasekhara Venkata Raman Indian physicist.
Wikidata
Raman spectroscopy
Raman spectroscopy is a spectroscopic technique used to observe vibrational, rotational, and other low-frequency modes in a system. It relies on inelastic scattering, or Raman scattering, of monochromatic light, usually from a laser in the visible, near infrared, or near ultraviolet range. The laser light interacts with molecular vibrations, phonons or other excitations in the system, resulting in the energy of the laser photons being shifted up or down. The shift in energy gives information about the vibrational modes in the system. Infrared spectroscopy yields similar, but complementary, information. Typically, a sample is illuminated with a laser beam. Light from the illuminated spot is collected with a lens and sent through a monochromator. Wavelengths close to the laser line due to elastic Rayleigh scattering are filtered out while the rest of the collected light is dispersed onto a detector. Spontaneous Raman scattering is typically very weak, and as a result the main difficulty of Raman spectroscopy is separating the weak inelastically scattered light from the intense Rayleigh scattered laser light. Historically, Raman spectrometers used holographic gratings and multiple dispersion stages to achieve a high degree of laser rejection. In the past, photomultipliers were the detectors of choice for dispersive Raman setups, which resulted in long acquisition times. However, modern instrumentation almost universally employs notch or edge filters for laser rejection and spectrographs
Numerology
Chaldean Numerology
The numerical value of raman spectroscopy in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of raman spectroscopy in Pythagorean Numerology is: 5
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"raman spectroscopy." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/raman+spectroscopy>.
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