Phys. Rev. Lett. 80, 5077–5080 (1998)Local-Field Effects on Spontaneous Emission in a Dense Supercritical GasReceived 9 January 1998; published in the issue dated 8 June 1998 We present results of experiments on the spontaneous emission rate of a europium complex in dense supercritical CO2. The refractive index of the supercritical gas is varied from 1.00 to 1.27 by increasing the pressure up to a 1000 bars. Accordingly, the spontaneous emission rate changes. Local-field effects on spontaneous emission are clearly observed in these experiments. The empty-cavity model for the spontaneous emission rate inside dielectrics is confirmed. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.5077
DOI:
10.1103/PhysRevLett.80.5077
PACS:
32.80.-t, 42.50.-p, 78.55.-m
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