compassion
发表于 2025-3-26 22:02:23
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infantile
发表于 2025-3-27 04:40:02
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下级
发表于 2025-3-27 06:34:26
Introduction,from the continuously developing field as well as astrophysicists, mineralogists, or even scientists working in medical research problems. As a definition of the term . any energy analysis of radiation after its interaction with matter may be used, no matter whether the radiation is electromagnetic,
MIRE
发表于 2025-3-27 13:25:49
Electromagnetic Radiation,ies of this particular probe. We will start with the idealized description of a plane wave within Maxwell’s theory and continue with an explicit description of more realistic fields, such as radiation from a dipole and from an arbitrarily accelerated charge. In Sects. 2.3 and 2.4 Fourier transforms
JIBE
发表于 2025-3-27 15:22:49
Light Sources with General Application, solids is based on Planck’s and Kirchhoff’s law, whereas in gas-discharge lamps the radiation from characteristic transitions of valence electrons is used as well. Thus, in the latter a high density of radiation can be obtained in a narrow frequency range. Recently, the broad-band radiation emitted
野蛮
发表于 2025-3-27 19:55:32
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疏忽
发表于 2025-3-27 23:32:41
Detection of Electromagnetic Radiation,number of different constraints. Requirements can be high sensitivity, large bandwidth, high speed, high stability, etc. Hence, a large number of different concepts and technical realizations exist for the detectors.
Incompetent
发表于 2025-3-28 05:11:41
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纵火
发表于 2025-3-28 07:01:33
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尾巴
发表于 2025-3-28 11:30:20
Symmetry and Selection Rules,e, statements about possible transition processes can very often be made just from symmetry considerations, without any calculation. We had plenty of examples in the last chapter. In these symmetry considerations group theory plays a fundamental role. This chapter summarizes the symmetry properties