- Autor(in)
- Referenz
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1 Leonard et al., Appl. Phys. Lett. 7 (1965) 175.
2 Ericson, K. G., Z. f. Fys. 37 (1968) 557.
3 Rosenberger, D., Phys. Lett. 13 (1964) 228.
4 Born, M., E. Wolf, Princ. of Optics, Chap. X, Oxford 1956.
5 Pohl, R. W., Optik, Berlin 1958.
6 Martienssen, W., Am. J. Phys. 32 (1964) 919.
- Seitenbereich
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0121 - 0136
- Zusammenfsg.
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Space coherence of the radiation has its origin in the correlated behaviour of the radiating atoms.
The excitation process which brings the atoms to the upper laser level (2 <I>p</I><sub>6</sub> Neon) will not establish any coherence between the atoms.
The experimental setup consits of a discharge tube closed with Brewster windows and the excitation electronics.
The following article describes the realization of a laser without any external resonance structure and the behaviour of the emitted radiation.
Theoretical and experimental values of the fringe visibility are in close agreement for a path difference till to 440 cm, if temporal coherence is measured in an M<small>ICHELSON</small> experiment. Interference fringes result if the radiation emerging from both sides of the tube is superimposed. The contrast decreases rapidly with the number of radiation pulses producing the interference pattern.
- Artikel-Typen
- Forschungsartikel