Fast Purcell-enhanced single photon source in 1,550-nm telecom band from a resonant quantum dot-cavity coupling
| Autor: | Birowosuto, M. D., Sumikura, H., Matsuo, S., Taniyama, H., van Veldhoven, P. J., Nötzel, R., Notomi, M. |
|---|---|
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Sci. Rep. 2 (2012) 321 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/srep00321 |
| Popis: | High-bit-rate nanocavity-based single photon sources in the 1,550-nm telecom band are challenges facing the development of fibre-based long-haul quantum communication networks. Here we report a very fast single photon source in the 1,550-nm telecom band, which is achieved by a large Purcell enhancement that results from the coupling of a single InAs quantum dot and an InP photonic crystal nanocavity. At a resonance, the spontaneous emission rate was enhanced by a factor of 5 resulting a record fast emission lifetime of 0.2 ns at 1,550 nm. We also demonstrate that this emission exhibits an enhanced anti-bunching dip. This is the first realization of nanocavity-enhanced single photon emitters in the 1,550-nm telecom band. This coupled quantum dot cavity system in the telecom band thus provides a bright high-bit-rate non-classical single photon source that offers appealing novel opportunities for the development of a long-haul quantum telecommunication system via optical fibres. Comment: 16 pages, 4 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|