Fabrication and Deterministic Transfer of High-Quality Quantum Emitters in Hexagonal Boron Nitride

By Tobias Vogl, G. Campbell, B. Buchler, Yuerui Lu, Ping Koy Lam. 2017

148 citations recorded by the source corpus.

Color centers in solid state crystals have become a frequently used system for single-photon generation, advancing the development of integrated photonic devices for quantum optics and quantum communication applications. In particular, defects hosted by two-dimensional (2D) hexagonal boron nitride (hBN) are a promising candidate for next-generation single-photon sources, due to its chemical and thermal robustness and high brightness at room temperature. The 2D crystal lattice of hBN allows for a high extraction efficiency and easy integration into photonic circuits. Here we develop plasma etching techniques with subsequent high-temperature annealing to reliably create defects. We show how different fabrication parameters influence the defect formation probability and the emitter brightness. A full optical characterization reveals the higher quality of the created quantum emitters, represented by a narrow spectrum, short excited state lifetime, and high single-photon purity. We also investigated the photos...

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/6ec51684b29040526cc33adcfa9e38c39aa80605

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1. R. Lecamwasam
2. Tobias Vogl
3. B. Buchler
4. Yuerui Lu
5. Ping Koy Lam

Citations in the corpus

• Compact Cavity-Enhanced Single-Photon Generation with Hexagonal Boron Nitride (2019, methodology): “3 up to 20 ns[18, 20] and ZPLs in the UV[25] and the full visible spectrum[15, 26] have been reported.”