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- Raman_spectroscopy abstract "Raman spectroscopy (/ˈrɑːmən/; named after Sir C. V. Raman) 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 either axial transmissive (AT), Czerny–Turner (CT) monochromator, or FT (Fourier transform spectroscopy based), and CCD detectors.There are a number of advanced types of Raman spectroscopy, including surface-enhanced Raman, resonance Raman, tip-enhanced Raman, polarised Raman, stimulated Raman (analogous to stimulated emission), transmission Raman, spatially offset Raman, and hyper Raman.".
- Raman_spectroscopy thumbnail Raman_energy_levels.svg?width=300.
- Raman_spectroscopy wikiPageExternalLink C3AN00698K.
- Raman_spectroscopy wikiPageExternalLink index.php.
- Raman_spectroscopy wikiPageID "68686".
- Raman_spectroscopy wikiPageRevisionID "605688559".
- Raman_spectroscopy hasPhotoCollection Raman_spectroscopy.
- Raman_spectroscopy subject Category:Raman_spectroscopy.
- Raman_spectroscopy comment "Raman spectroscopy (/ˈrɑːmən/; named after Sir C. V. Raman) 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.".
- Raman_spectroscopy label "Espectroscopia Raman".
- Raman_spectroscopy label "Espectroscopia Raman".
- Raman_spectroscopy label "Raman spectroscopy".
- Raman_spectroscopy label "Raman-Spektroskopie".
- Raman_spectroscopy label "Ramanspectroscopie".
- Raman_spectroscopy label "Spectroscopie Raman".
- Raman_spectroscopy label "Spektroskopia Ramana".
- Raman_spectroscopy label "Spettroscopia Raman".
- Raman_spectroscopy label "Рамановская спектроскопия".
- Raman_spectroscopy label "ラマン分光法".
- Raman_spectroscopy label "拉曼光譜學".
- Raman_spectroscopy sameAs Ramanova_spektroskopie.
- Raman_spectroscopy sameAs Raman-Spektroskopie.
- Raman_spectroscopy sameAs Φασματοσκοπία_Ράμαν.
- Raman_spectroscopy sameAs Espectroscopia_Raman.
- Raman_spectroscopy sameAs Spectroscopie_Raman.
- Raman_spectroscopy sameAs Spettroscopia_Raman.
- Raman_spectroscopy sameAs ラマン分光法.
- Raman_spectroscopy sameAs 라만_분광법.
- Raman_spectroscopy sameAs Ramanspectroscopie.
- Raman_spectroscopy sameAs Spektroskopia_Ramana.
- Raman_spectroscopy sameAs Espectroscopia_Raman.
- Raman_spectroscopy sameAs m.0hyrx.
- Raman_spectroscopy sameAs Q862228.
- Raman_spectroscopy sameAs Q862228.
- Raman_spectroscopy wasDerivedFrom Raman_spectroscopy?oldid=605688559.
- Raman_spectroscopy depiction Raman_energy_levels.svg.
- Raman_spectroscopy isPrimaryTopicOf Raman_spectroscopy.
