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Is it possible to change the properties - frequency, wavelength, energy - of a single photon? For example, can a gamma-ray be transformed into a light-ray?
Question
#123086. Asked by houston1127. (Aug 16 11 9:00 PM)
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looney_tunes

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Inelastic interactions of photons with matter usually cause them to lose energy, hence experience a decrease in frequency and an increase in wavelength. There is a lot of difference between a gamma ray and a visible light ray, so a single interaction is unlikely to produce that much change in the photon's properties. (An increase in energy of the photon, called reverse Compton effect, is also sometimes observed.)
http://en.wikipedia.org/wiki/Compton_scattering
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