Dynamic control of spontaneous emission rate using tunable hyperbolic metamaterials

doi:10.1364/ol.385844

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Dynamic control of spontaneous emission rate using tunable hyperbolic metamaterials
	S. K. Chamoli,M. Elkabbash,J. H. Zhang and C. L. Guo
刊名	Optics Letters
	2020
卷号	45 期号:7 页码:1671-1674
ISSN号	0146-9592
DOI	10.1364/ol.385844
英文摘要	We numerically investigate the dynamic control over the spontaneous emission rate of quantum emitters using tunable hyperbolic metamaterials (HMMs). The dispersion of a metal-dielectric thin-film stack at a given frequency can undergo a topological transition from an elliptical to a hyperbolic dispersion by incorporating a tunable metal or dielectric film in the HMM. This transition modifies the local density of optical states of the emitter and, hence, its emission rate. In the visible range, we use an HMM consisting of TiN and Sb2S3 and show considerable tunability in the Purcell enhancement and quantum efficiency as Sb2S3 phase changes from amorphous to crystalline. Similarly, we show tunable Purcell enhancement in the telecommunication wavelength range using a TiN/VO2- HMM. Finally, tunable spontaneous emission rate in the mid-IR range is obtained using a graphene/MgF2 HMM by modifying the graphene conductivity through changing its chemical potential. We show that using a metal nitride (for the visible and MR HMMs) and a fluoride (for the mid-IR HMM) is important to get an appreciable change in the effective permittivity of the thin-film multilayer stack. (C) 2020 Optical Society of America
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64463]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	S. K. Chamoli,M. Elkabbash,J. H. Zhang and C. L. Guo. Dynamic control of spontaneous emission rate using tunable hyperbolic metamaterials[J]. Optics Letters,2020,45(7):1671-1674.
APA	S. K. Chamoli,M. Elkabbash,J. H. Zhang and C. L. Guo.(2020).Dynamic control of spontaneous emission rate using tunable hyperbolic metamaterials.Optics Letters,45(7),1671-1674.
MLA	S. K. Chamoli,M. Elkabbash,J. H. Zhang and C. L. Guo."Dynamic control of spontaneous emission rate using tunable hyperbolic metamaterials".Optics Letters 45.7(2020):1671-1674.