Tranform photon to other energy

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Photons can transform into other forms of energy when they are absorbed, such as when light hits an object and increases its internal energy. Light, which consists of photons, can indeed be absorbed, leading to energy transformation. The interaction between photons and charged particles, like electrons, occurs despite photons being neutral; this is due to their electric fields. At low energies, photons interact with entire atoms, while at higher energies, they interact with individual electrons through processes like Thomson and Compton scattering. Understanding these interactions is crucial for grasping how energy transformation occurs in various contexts.
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hi guys i want to ask you about something . Energy can not be made or destruct , but it can TRANSFORM to other energy . my question is can photon transform to other energy ? :zzz:
 
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russ : how about the light ? if light hits something , will it absorbed ?
 
Isn't that the same question? Light is photons, after all.
 
what will be if photon of light destruct ?
 
kevinsetiono said:
what will be if photon of light destruct ?
Increased internal energy. Consider what happens when you sit out in the sun: you get hot.
 
Here is an extreme case of photon energy transformation. Shoot a laser beam of 1-eV photons headlong into a 1-GeV electron beam (γ=1960). The photon Compton scatters off the electron and back along the same direction as the incident electron. The energy of the backscattered photon is 4γ2·1 eV = 15 MeV.
 
Bob S said:
Here is an extreme case of photon energy transformation. Shoot a laser beam of 1-eV photons headlong into a 1-GeV electron beam (γ=1960). The photon Compton scatters off the electron and back along the same direction as the incident electron. The energy of the backscattered photon is 4γ2·1 eV = 15 MeV.
i just think if photon is neutral , it can not be affected by electron , i guess
 
  • #10
kevinsetiono said:
i just think if photon is neutral , it can not be affected by electron , i guess

Photons easily interact with charged particles including electrons.
 
  • #11
Drakkith said:
Photons easily interact with charged particles including electrons.
can you explain why this happen , i just think if neutral charged can not be affected by positive charge or negative one
 
  • #12
kevinsetiono said:
i just think if photon is neutral , it can not be affected by electron , i guess

kevinsetiono said:
can you explain why this happen , i just think if neutral charged can not be affected by positive charge or negative one
The photon is comprised of a transverse E field and an orthogonal transverse H field. It is the transverse E field that interacts with charged particles. At very low energies photons interact with the entire atom, like in Rayleigh scattering of sunlight (blue sky). At higher energies, photons interact with individual electrons, and this is called Thomson scattering. See http://en.wikipedia.org/wiki/Thomson_scattering. At relativistic energies, it is called Compton scattering.

The cross ection for Thomson scattering is about 0.665 barns = 0.665 x 10-24 cm2.

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