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增材GaN固体浸泡镜头用于从钻石颜色中心提升光子提取效率

Xingrui Cheng^1,2, Nils Kolja Wessling³, Saptarsi Ghosh⁴

¹Department of Engineering Science, University of Oxford, Oxford OX1 3PH, U.K.

ACS photonics

|September 25, 2023

概括

研究人员使用化 (GaN) 微镜头改进了钻石中空 (NV) 中心的光收集. 这通过提高光灯提取效率来增强量子系统集成.

科学领域:

量子光学就是一个量子光学.
固态物理固态物理
材料科学是一种材料科学.

背景情况:

从固态自旋中心有效地提取光线对于量子系统至关重要.
钻石中的空 (NV) 中心是有希望的固态自旋量子比特.

研究的目的:

为了提高光灯收集效率从NV中心在钻石.
为了实现可扩展量子系统的确定性制造路径.

主要方法:

在散装钻石中激光写入NV中心.
化 (GaN) 固体浸泡镜片的微转印. 固体浸泡镜片.
通过范德瓦尔斯力,微镜头的非侵入性集成.

主要成果:

在5微米深度的NV中心,光灯收集效率大约提高2倍,目标NA=0.95.
显著增强光采集和信号噪声比,目标NA=0.5.
在微镜头集成后保留NV中心量子性质.

结论:

微传输打印的GaN固体浸泡镜头有效地增强了钻石NV中心的光提取.
集成方法是非侵入性的,并且与可扩展量子系统开发兼容.
这种方法为改善基于钻石的量子技术的性能提供了一个有希望的途径.

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