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Principle of absorption spectroscopy

5 years ago in Research Methods By Abhay R

Research methods

I want to conduct my research in atomic physics. Can someone kindly explain me the principle of absorption spectroscopy?

All Answers (4 Answers In All)

By Muhammad Umar Farooq Answered 5 years ago

Hey, Abhay The basic principle of absorption spectroscopy is, you can acquire adequate information about the target’s energy levels just by measuring the wavelengths of light that the target absorbs. You have to pass the beam through a vapor cell (preferably Rubidium) and monitor the power level of the transmitted beam. By doing so, it is possible for you to detect the absorption of light.

By Mayur Desai Answered 5 years ago

Hello Abhay. In absorption spectroscopy, if the frequency of the laser beam is equivalent to the frequency that is required to drive an electron into an excited state, then the atoms absorb photons from the laser beam. When an atom absorbs a photon, it decays to its ground state and emits a photon of the same frequency as that of the absorbed photon. As the re-emission occurs in a random direction, the energy of the scattered photons will be lost from the original beam.

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