Phys. Rev. A 78, 023806 (2008) [5 pages]Finite-size corrections to the blackbody radiation lawsReceived 24 September 2007; revised 6 May 2008; published 6 August 2008 We investigate the radiation of a blackbody in a cavity of finite size. For a given geometry, we use semiclassical techniques to obtain explicit expressions of the modified Planck and Stefan-Boltzmann blackbody radiation laws as a function of the size and shape of the cavity. We determine the range of parameters (temperature and size and shape of the cavity) for which these effects are accessible to experimental verification. Finally we discuss potential applications of our findings in the physics of the cosmic microwave background and sonoluminescence. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.78.023806
DOI:
10.1103/PhysRevA.78.023806
PACS:
42.50.Pq, 05.45.Mt, 04.20.Cv, 05.30.−d
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