What is potential barrier against the photon penetration

The absorption depends on the material's density, atomic number, and the energy of the photon. The potential barrier, which is a measure of how difficult it is for a photon to penetrate a material, is affected by these parameters as well as temperature. The potential can be visualized through curves over the surface of a material. In summary, Photons travel through matter and get absorbed, with the depth of penetration depending on the material's density, atomic number, and photon energy. The potential barrier, which measures the difficulty of photon penetration, is also influenced by these parameters and temperature, and can be shown through curves over a material's surface.
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xhtp2000
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It is known that the penetration depth of photon into a material depends on the energy of the photon, density and atomic number of the material; because the photon energy is normally smaller than the potential against the penetration of photon, which is the potential barrier, so the incident photon attenuates. My question is, what is this potential, and how is it related to other parameters in quantum mechanics, e.g. atomic number, density, temperature etc.. Could someone recommend a book or show some curves of this potential over the surface of some material?
 
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Photons travel through matter until they get absorbed.
 
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1. What is a potential barrier against photon penetration?

A potential barrier against photon penetration is a barrier or energy difference that exists between two regions in a material, which prevents the free movement of photons from one region to another.

2. How does a potential barrier impact photon penetration?

A potential barrier can significantly impact photon penetration by either allowing or preventing the photons from passing through the barrier, depending on the energy of the photons and the height of the barrier.

3. What factors determine the height of a potential barrier?

The height of a potential barrier is determined by the difference in energy levels between the two regions and the properties of the material, such as its composition and thickness.

4. Can a potential barrier be overcome by photons?

Yes, a potential barrier can be overcome by photons if the energy of the photons is high enough to surpass the barrier's height. This is known as tunneling, where the photons have a small probability of passing through the barrier even if their energy is lower than the barrier's height.

5. How does the potential barrier affect the behavior of photons in a material?

The presence of a potential barrier can alter the behavior of photons in a material, as it can either reflect, absorb, or transmit the photons depending on the barrier's properties and the energy of the photons. This phenomenon is significant in the study of semiconductors and quantum mechanics.

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