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hyperphysics

Photon

Photon is the name given to a quantum of light or other electromagnetic radiation.

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http://hyperphysics.phy-astr.gsu.edu/hbase/particles/expar.html#c5
hyperphysics

Absorption and Emission

Taking the electron transitions associated with visible and ultraviolet interactions with matter as an example, absorption of a photon will occur only when the quantum energy of the photon precisely ...

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Hits: 1513

http://hyperphysics.phy-astr.gsu.edu/hbase/mod5.html#c2
hyperphysics

Electroweak Unification

The photon along with the W and Z provide the necessary pieces to unify the weak and electromagnetic interactions.

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Hits: 1264

http://hyperphysics.phy-astr.gsu.edu/hbase/forces/unify.html#c1

Debroglie Wavelength

Suggested by De Broglie in about 1913, the path to the wavelength expression for a particle is by analogy to the momentum of a photon.

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Hits: 950

http://hyperphysics.phy-astr.gsu.edu/hbase/debrog.html#c3

Photon Absorption

Explanation of the absorption of photons in an hydrogen atom and its energy levels. Use of the Bohr and Rydberg equations.

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http://www.shep.net/resources/curricular/physics/P30/Unit4/Topic07_Bohr/Notes/index.html

Advanced Photon Source

The APS is a national synchrotron radiation research facility located at Argonne National Laboratory near Chicago, Illinois, USA

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Hits: 1202

http://www.aps.anl.gov/

Photon Emission and Atomic Energy Levels

Information about E=hf and discussion about the energy required by photons to promote electrons to higher levels.

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Hits: 1717

http://zebu.uoregon.edu/nsf/emit.html

Single-Photon Computed Tomography (SPECT)

A web site explaining the basics of SPECT. There are no images to view but the site links back to a medical imaging homepage which explains other techniques.

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Hits: 1526

http://cfi.lbl.gov/~budinger/spect.html

Atom-Light interactions and lasers

A short page dealing with the atomic explanation of lasers. Although brief and lacking detail there is a good little applet which shows what happens when an excited atom is struck by a photon.

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Hits: 1454

http://www.colorado.edu/physics/2000/lasers/lasers2.html

Planck's Constant and the Energy of a Photon

Physics 2000 tutorial on Planck's constant.

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Hits: 967

http://www.colorado.edu/physics/2000/quantumzone/photoelectric2.html
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