Detailed numerical analysis of photon emission from a single light emitter coupled with a nanofiber Bragg cavity

Coupling of a single dipole with a nanofiber Bragg cavity (NFBC) approximating an actually fabricated structure was numerically analyzed using three dimensional finite-difference time-domain simulations for different dipole positions. For the given model structure, the Purcell factor and coupling ef...

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Bibliographic Details
Published in:Optics express 2016-06, Vol.24 (13), p.15050-15058
Main Authors: Takashima, Hideaki, Fujiwara, Masazumi, Schell, Andreas W, Takeuchi, Shigeki
Format: Article
Language:English
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Summary:Coupling of a single dipole with a nanofiber Bragg cavity (NFBC) approximating an actually fabricated structure was numerically analyzed using three dimensional finite-difference time-domain simulations for different dipole positions. For the given model structure, the Purcell factor and coupling efficiency reached to 19.1 and 82%, respectively, when the dipole is placed outside the surface of the fiber. Interestingly, these values are very close to the highest values of 20.2 and 84% obtained for the case when the dipole was located inside the fiber at the center. The analysis performed in this study will be useful in improving the performance of single-photon emitter-related quantum devices using NFBCs.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.24.015050