. .. Density, 75 3.3.2 Collisional or collective effects?

.. .. Conclusion,

S. Wylie, show that the position-dependent atomsurface interaction potential is quite complicated to write down explicitly. Particularly, the general potential is not a sum of the short (1/z 3 ) and long (1/z 4 ) range contributions; otherwise it would scale as 1/z 3 for large z, in contradiction with the Casimir-Polder regime. Our spectroscopic technique is not adapted to search experi-Contents 6.1 Fluorescence spectroscopy versus transmission spectroscopy, p.126, 1984.

. .. , 128 6.1.3 A fluorescence model to study the interactions, p.133

. .. Fluorescence, 136 6.2.1 Initial results: extraction of the bulk properties

, 3.2 Dependence of shifts and widths with density, p.142

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