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Experimental Optical Properties of Single-Photon Emitters in Aluminum Nitride Films

2021-06-24

 

作者: Xue, YZ (Xue, Yongzhou); Wei, TB (Wei, Tongbo); Chang, HL (Chang, Hongliang); Liang, DD (Liang, Dongdong); Dou, XM (Dou, Xiuming); Sun, BQ (Sun, Bao-quan)

来源出版物: JOURNAL OF PHYSICAL CHEMISTRY C 卷: 125 期: 20 页: 11043-11047 DOI: 10.1021/acs.jpcc.1c01376 出版年: MAY 27 2021

摘要: Single-photon emitters (SPEs) are one of the building blocks in quantum information processing. Here, we report detailed experimental optical properties of the SPEs in aluminum nitride (AlN) films at 10 K. The high-quality AlN films are grown by metal-organic chemical vapor deposition on graphene/sapphire substrates, which can conquer the large lattice and thermal mismatches between the sapphire and AlN. We report the defects in AlN with a relatively high Debye-Waller factor up to similar to 29% and near-perfect linear polarization SPEs with a saturation count rate of 1.43 x 10(6) counts/s. The power-dependent second-order autocorrelation measurements are used to study the transition kinetics, which can be described using a three-level model. The polarization measurements of absorption and emission reveal the optical cycle mechanism, where a particular zero-phonon line may be excited via multiple mechanisms. This work provides some insight into the nature of the optical properties and energy-level structures of AlN defects, which pave the way to integrated on-chip quantum photonics.

入藏号: WOS:000657357100024

ISSN: 1932-7447

eISSN: 1932-7455

Full Text: https://pubs.acs.org/doi/10.1021/acs.jpcc.1c01376



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