Local-field effects on spontaneous emission of impurity atoms in homogeneous dielectrics

✍ Scribed by Frank J.P. Schuurmans; Pedro de Vries; Ad Lagendijk

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 76 KB
• Volume: 264
• Category: Article
• ISSN: 0375-9601
• DOI: 10.1016/s0375-9601(99)00855-5

✦ Synopsis

The local-field corrections to the spontaneous emission rate of an impurity atom in an otherwise homogeneous dielectric are calculated by making use of a macroscopic approach. An extension of a method introduced by Onsager and Bottcher is presented.

By distinguishing between the substitutional and interstitial character of impurities, the well-known empty-cavity and Lorentz local-field factors are obtained, respectively. For fluids, the substitutional case is predicted to occur prevalently.