Phase change material-based nano-cavity as an efficient optical modulator

doi:10.1088/1361-6528/abcb7a

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	Phase change material-based nano-cavity as an efficient optical modulator
	S. K. Chamoli; G. Verma; S. C. Singh and C. Guo
	2021
发表期刊	Nanotechnology
ISSN	9574484
卷号	32 期号:9
摘要	Structural phase transition induced by temperature or voltage in phase change materials has been used for many tunable photonic applications. Exploiting reversible and sub-ns fast switching in antimony trisulfide (Sb2S3) from amorphous (Amp) to crystalline (Cry), we introduced a reflection modulator based on metal-dielectric-metal structure. The proposed design exhibits tunable, perfect, and multi-band absorption from visible to the near-infrared region. The reflection response of the system shows >99% absorption of light at normal incidence. The maximum achievable modulation efficiency with a narrow line width is 98%. Interestingly, the designed cavity supports critical resonance in an ultrathin (/15) Sb2S3 film with perfect, broadband, and tunable absorption. Finally, we proposed a novel hybrid cavity design formed of Cry and Amp Sb2S3 thin films side-by-side to realize an optical modulator via relative motion between the incident light beam and cavity. The proposed lithographic free structure can be also used for filtering, optical switching, ultrathin photo-detection, solar energy harvesting, and other energy applications. 2020 IOP Publishing Ltd.
DOI	10.1088/1361-6528/abcb7a
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65528
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,G. Verma,S. C. Singh and C. Guo. Phase change material-based nano-cavity as an efficient optical modulator[J]. Nanotechnology,2021,32(9).
APA	S. K. Chamoli,G. Verma,&S. C. Singh and C. Guo.(2021).Phase change material-based nano-cavity as an efficient optical modulator.Nanotechnology,32(9).
MLA	S. K. Chamoli,et al."Phase change material-based nano-cavity as an efficient optical modulator".Nanotechnology 32.9(2021).

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