Polarized spontaneous emission from an emitter in controlled nodal vacuum fluctuations near a single high reflector

Polarization-dependent spontaneous emission (SE) from multiple quantum wells (MQWs) sandwiched between a high-reflectivity distributed Bragg reflector (DBR) and a low-reflectivity surface of about 30% reflectance was investigated. In photoluminescence spectra, a split of the p- and s-polarized emiss...

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Bibliographic Details
Published in:Journal of the Optical Society of America. B, Optical physics Optical physics, 2014-02, Vol.31 (2), p.237-247
Main Author: Iwase, Hideo
Format: Article
Language:English
Subjects:
Band spectra
Bragg reflectors
Emission
Fluctuation
Reflectivity
Reflectors
Spectral emissivity
Spontaneous emission
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Summary:Polarization-dependent spontaneous emission (SE) from multiple quantum wells (MQWs) sandwiched between a high-reflectivity distributed Bragg reflector (DBR) and a low-reflectivity surface of about 30% reflectance was investigated. In photoluminescence spectra, a split of the p- and s-polarized emission peaks was observed at the DBR band edges, while emission was completely suppressed in its bandgap. Theoretical analysis of the SE rate, based on quantum electrodynamics, explains well the experimental observations; that is, SE enhancement ratios of polarized light can be varied drastically by shifting the position of the low-reflectivity surface that modifies the nodal vacuum fluctuations in front of the high reflector.
ISSN:0740-3224
1520-8540
DOI:10.1364/JOSAB.31.000237