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	Enhanced near-infrared absorption in graphene with multilayer metal-dielectric-metal nanostructure
	Zhang, Lei1; Tang, Linlong2; Wei, Wei3; Cheng, Xinlu1; Wang, Wei1; Zhang, Hong1
	2016-09-05
摘要	A multilayer metal-dielectric-metal nanostructure is proposed to enhance the absorption in graphene in a near-infrared region. The main feature of the structure is the generation of strong magnetic response within the dielectric spacer, which is directly related to absorption enhancement in graphene to over 22 times higher than that of free-standing monolayer graphene. We also show that absorption enhancement in graphene can be easily controlled by adjusting the geometry of the propose structure. The simple structural configuration and the flexible tunability in absorption enhancement are beneficial for practical fabrication and future applications in graphene-based active optoelectronic devices. (C) 2016 Optical Society of America
DOI	10.1364/OE.24.020002
发表期刊	OPTICS EXPRESS
ISSN	1094-4087
卷号	24期号:18页码:20002-20009
通讯作者	Wang, W (reprint author), Sichuan Univ, Coll Phys Sci & Technol, Chengdu 610065, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000386091300011
语种	英语