AkaSci 🛰️ on Nostr: Here are two excellent diagrams that illustrate Raman scattering. When light strikes ...

Here are two excellent diagrams that illustrate Raman scattering.

When light strikes a sample material, most of it is absorbed, transmitted, or reflected. A small amount is scattered in one of 3 ways:
1. Rayleigh - no energy is absorbed, the wavelength remains unchanged.
2. Stokes Raman - some energy is absorbed by molecules, the wavelength of scattered light expands.
3. Anti-Stokes Raman - molecules end up in a lower energy state, the wavelength decreases.

https://www.edmundoptics.com/knowledge-center/application-notes/lasers/basic-principles-of-raman-scattering-and-spectroscopy/
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