Raman scattering involves the SCATTERING of electromagnetic radiation by molecules, not atoms
Fluorescence emission follows an absorption process
It depends what you are looking for. There are online databases of Raman spectra for minerals, for example, e.g. https://www.fis.unipr.it/phevix/ramandb.php For characteristic functional groups/molecules and their peaks, it is better to consult a textbook of Raman Spectra, within which you can find tables of peak assignments - take a visit to the library!
= Raman Spectroscopy of Carbon Nanotubes under Axial Strain - Rajay Kumar =
Metals have the ability to shield external electric field, therefore when laser light used for excitation in Raman spectroscopy falls on the metal surface, it cannot penetrate very deeply. Also, noble metals have crystal structures with only one atom per unit cell, therefore only acoustic phonons exist, and no optic phonons that could be detected with Raman. Exceptioon is gallium - see ref. J.A. Creighton and R. Withnall Chemical Physics Letters , volume 326 (2000) pages 311-313.
ν1=1/λ1 ν1-s1
Covalent bonds are "flexible", a bit like a spring, BUT the energy to make them vibrate is quantised and only specific frequencies (often in the infred spectrum) are "allowed"- this si the basis of IR and Raman vibrational spectroscopy.
Sir C.V.Raman invented Raman effect
Raman Effect
sir cv raman invented raman effect raman effect is a change in the wave length of light that occurs when a light beam is deflected by molecules. Raman effect states that when monochromatic light is passed through a substance it attains some additional frequencies other than its frequency .
yes
Raman effect is change in the wavelength of light that occurs when a light beam is deflected by molecules.
C.V.Raman
The Raman effect, also known as Raman scattering, is the inelastic scattering of a photon. It was discovered by C. V. Raman and K. S. Kishnan in liquids. G. Landsberg and L. I. Mandelstam discovered it in crystals.
1903-1909
The Raman effect refers to the inelastic scattering of light by molecules, resulting in a change in energy of the scattered photons. This effect provides information about the vibrational and rotational modes of molecules, making it a useful tool for analyzing chemical structures and compositions. Raman spectroscopy is a common technique that utilizes the Raman effect for various applications in chemistry, physics, and materials science.
Sir C V Raman discovered the raman effect. He was one of the greatest scientists of all times. He specialized in Physics.
C. V. Raman was awarded the Nobel Prize for his work on the scattering of light and for the discovery of the Raman effect.
raman effect states that when a monochromatic light is passed through a substance,it attains some additional frequencies other than its incident frequency.