Resonant enhancement of the zero-phonon emission from a colour centre in a diamond cavity

作者：Faraon Andrei^*; Barclay Paul E; Santori Charles; Fu Kai Mei C; Beausoleil Raymond G

来源：Nature Photonics, 2011, 5(5): 301-305.

DOI：10.1038/NPHOTON.2011.52

Integrated quantum photonic technologies are key for future applications in quantum information(1,2), ultralow-power opto-electronics(3) and sensing(4). As individual quantum bits, nitrogen-vacancy centres in diamond are among the most promising solid-state systems identified to date, because of their longlived electron and nuclear spin coherence, and capability for individual optical initialization, readout and information storage(5-9). The major outstanding hurdle lies in interconnecting many nitrogen vacancies for large-scale computation. One of the most promising approaches in this regard is to couple them to optical resonators, which can be further interconnected in a photonic network(10-12). Here, we demonstrate coupling of the zero-phonon line of individual nitrogen vacancies to the modes of microring resonators fabricated in single-crystal diamond. Zero-phonon line enhancement by more than a factor of 10 is estimated from lifetime measurements. The devices are fabricated using standard semiconductor techniques and off-the-shelf materials, thus enabling integrated diamond photonics.

• 出版日期2011-5