Deterministic coupling of delta-doped nitrogen vacancy centers to a nanobeam photonic crystal cavity

Autor: Kenichi Ohno, Benjamin Aleman, Igor Aharonovich, Claire A. McLellan, Xingyu Zhang, Jonathan C. Lee, David O. Bracher, Andrew P. Magyar, Paolo Andrich, David D. Awschalom, Evelyn L. Hu, Ania Jayich, Shanying Cui, Kasey J. Russell
Rok vydání: 2014
Předmět:
Zdroj: Applied Physics Letters. 105:261101
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.4904909
Popis: The negatively charged nitrogen vacancy center (NV) in diamond has generated significant interest as a platform for quantum information processing and sensing in the solid state. For most applications, high quality optical cavities are required to enhance the NV zero-phonon line (ZPL) emission. An outstanding challenge in maximizing the degree of NV-cavity coupling is the deterministic placement of NVs within the cavity. Here, we report photonic crystal nanobeam cavities coupled to NVs incorporated by a delta-doping technique that allows nanometer-scale vertical positioning of the emitters. We demonstrate cavities with Q up to ∼24 000 and mode volume V ∼ 0.47(λ/n)3 as well as resonant enhancement of the ZPL of an NV ensemble with Purcell factor of ∼20. Our fabrication technique provides a first step towards deterministic NV-cavity coupling using spatial control of the emitters.
Databáze: OpenAIRE