Yu Yi, Seo In Cheol, Luo Manlin, Lu Kunze, Son Bongkwon, Tan Jian Kwang, Nam Donguk
School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
Nanophotonics. 2024 Jun 3;13(19):3615-3629. doi: 10.1515/nanoph-2024-0050. eCollection 2024 Aug.
Single-photon emitters (SPEs) hold the key to many quantum technologies including quantum computing. In particular, developing a scalable array of identical SPEs can play an important role in preparing single photons - crucial resources for computation - at a high rate, allowing to improve the computational capacity. Recently, different types of SPEs have been found in various 2D materials. Towards realizing scalable SPE arrays in 2D materials for quantum computation, it is required to develop tunable SPEs that can produce identical photons by precisely controlling emission properties. Here, we present a brief review of the recent progress on various tuning methods in different 2D materials. Firstly, we discuss the operation principle of different 2D SPEs along with their unique characteristics. Secondly, we introduce various dynamic strain engineering methods for tuning the emission wavelengths in 2D SPEs. We also present several electric field-induced wavelength tuning methods for 2D SPEs. Lastly, we discuss the outlook of dynamically tunable 2D SPEs towards scalable 2D SPE arrays for realizing practical quantum photonics applications.
单光子发射器（SPEs）是包括量子计算在内的许多量子技术的关键。特别是，开发一个可扩展的相同SPEs阵列对于高速制备单光子（计算的关键资源）具有重要作用，从而能够提高计算能力。最近，在各种二维材料中发现了不同类型的SPEs。为了在二维材料中实现用于量子计算的可扩展SPEs阵列，需要开发可通过精确控制发射特性来产生相同光子的可调谐SPEs。在此，我们简要回顾不同二维材料中各种调谐方法的最新进展。首先，我们讨论不同二维SPEs的工作原理及其独特特性。其次，我们介绍用于调谐二维SPEs发射波长的各种动态应变工程方法。我们还展示了几种用于二维SPEs的电场诱导波长调谐方法。最后，我们讨论了动态可调谐二维SPEs在实现实际量子光子学应用的可扩展二维SPEs阵列方面的前景。
