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tyogav
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Why do we need the presence of an intense radiation in Inverse Raman Effect and Multi Photon Absorption?
Raman scattering is a phenomenon in which light is scattered by matter, resulting in a shift in the wavelength of the scattered light. This shift is caused by the interaction between the light and the molecules or atoms of the matter.
Raman scattering works by the interaction between light and matter, specifically the vibration of molecules or atoms. When light is scattered, some of the photons interact with the molecules or atoms, causing them to vibrate and emit light at a different wavelength.
Stokes Raman scattering occurs when the scattered light has a longer wavelength than the incident light, while Anti-Stokes Raman scattering occurs when the scattered light has a shorter wavelength. This difference is due to the energy exchange between the light and molecules or atoms.
Lasers are used in Raman scattering as a light source because they emit a single wavelength of light, making it easier to detect the shifts in wavelength caused by the scattering. They also provide a high intensity of light, which increases the chances of interaction between the light and matter.
Raman scattering and lasers have various applications in fields such as chemistry, physics, biology, and materials science. They are used for chemical analysis, material characterization, and medical imaging, among others. They also have applications in technology, such as in telecommunications and laser-based devices.