corporate
发表于 2025-3-25 07:00:57
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玷污
发表于 2025-3-25 07:51:57
Interferometers,dex and density, optical testing, surface studies and microscopy, amongst others. Only two types are important for high resolution spectroscopy: the Fabry-Perot and the Michelson. The Fabry-Perot is a multiple-beam interferometer, capable of extremely high resolution from the near infra-red to the q
cushion
发表于 2025-3-25 12:42:59
Laser spectroscopy,tions of lasers in atomic and optical physics. We have tried to stick to a guideline of direct relevance to optical spectroscopy, particularly high-resolution spectroscopy, and to give an idea of the types of experiment that can be performed ‘better’ with lasers and the types that cannot be performe
indecipherable
发表于 2025-3-25 15:54:46
Other spectroscopic methods: microwave, radiofrequency, level-crossing and Raman, GHz to 30 MHz. The short wavelength end of this range (1 mm < λ < 10 cm, say) comprises pure rotational transitions of molecules, Zeeman and Stark splittings, and the hyperfine structure of heavy atoms. Towards longer wavelengths (lower frequencies) one can measure the hyperfine structure of light
Conquest
发表于 2025-3-25 22:00:27
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Mnemonics
发表于 2025-3-26 03:29:15
Emission and absorption of line radiation,ency spread discussed in Chapter 10. The power is determined by the relevant transition probability and by the population of the initial state. Both of these quantities have appeared in various forms in earlier chapters. The population of excited states is discussed briefly in section 4.4, and the t
开玩笑
发表于 2025-3-26 06:20:50
Experimental determination of transition probabilities and radiative lifetimes,ained experimentally; calculations tend to be of doubtful reliability unless they have been experimentally vindicated. The experimental methods described in this chapter are, however, of rather wider application than the title indicates, because the same methods can be used to determine parameters o
Misgiving
发表于 2025-3-26 10:08:22
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JAUNT
发表于 2025-3-26 13:17:13
pectroscopy may be grouped under three broad headings: chemical analysis, elucidation of atomic and molecular structure, and investigations of the interactions of radiating atoms and molecules with their environment. I have used the word ‘Spectro physics‘ for the third of these by analogy with spec
不整齐
发表于 2025-3-26 18:19:21
Book 1988y may be grouped under three broad headings: chemical analysis, elucidation of atomic and molecular structure, and investigations of the interactions of radiating atoms and molecules with their environment. I have used the word ‘Spectro physics‘ for the third of these by analogy with spectrochemist