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| physical object > natural object > particle > boson > carrier boson > photon > infrared |
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| infrared (IR) | ||||
| subject | fact | |||
| infrared | has frequency 3 THz to 430 THz |  |
| has wavelength 700 nm to 100 μm | | |
| has acronym IR | | |
| has definition That part of the electromagnetic spectrum that lies beyond the red, having wavelengths from about 7500 Å to a few millimeters (about 1011-1014 Hz). Infrared radiation is caused by atomic transitions, or by vibrational (near-IR) and rotational (far-IR) transitions in molecules. (IRe1, IRc1, IRs1: the e sources are extended; the c sources are unresolved; the s indicates an infrared nebula surrounding a visible star.) | | |
| has definition The region of the electromagnetic spectrum from a wavelength of about 1 μm (10-6 m) to about 200 μm. The region from 1 to 5 µm is the near infrared: 5-30 is the mid infrared and 30-200 µm is the far infrared. | | |
| is a kind of photon | | |
| photon | has spin 1 | |
| has synonym electromagnetic radiation | | |
| carries the force electromagnetism | | |
| massless particle | has mass 0 | |
| neutral particle | is not accelerated by electric or magnetic fields | |
| has charge 0 | | |
| wave | has propagation direction | |
| particle | obeys uncertainty principle | |
| boson | has quantum behavior Bose-Einstein statistics | |
| harmonic motion | has amplitude | |
| has period | | |
| physical process | has domain physics | |
| physical object | has location or center of gravity | |
| has angular momentum | | |
| has velocity | | |
| has momentum | | |
| has temperature | | |
| has volume | | |
| has extent | | |
| has material | |
Kinds of infrared :
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