期刊
PHYSICAL REVIEW A
卷 84, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.84.023807
关键词
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资金
- Ministry of Education and Science of the Russian Federation
- RFBR
- Dynasty Foundation (Russia)
- EPSRC (UK)
- Australian Research Council
- Engineering and Physical Sciences Research Council [EP/E053025/1] Funding Source: researchfish
- EPSRC [EP/E053025/1] Funding Source: UKRI
We study the radiative decay and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the medium longitudinal and transverse dielectric constants are opposite, and that the isofrequency contour corresponds to a hyperbolic medium. We reveal that the Purcell enhancement factor remains finite even in the absence of losses and that it depends on the emitter size.
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