Coupler-free transition from light to surface plasmon polariton

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 量子光学重点实验室

	Coupler-free transition from light to surface plasmon polariton
	Du, Chunguang ; Jing, Qingli ; Hu, Zhengfeng
刊名	phys. rev. a
	2015
卷号	91 期号:1 页码:13817
通讯作者	du, cg (reprint author), tsinghua univ, dept phys, state key lab low dimens quantum phys, beijing 100084, peoples r china.
英文摘要	it is widely believed that surface plasmon polaritons (spps) at flat metal surfaces cannot be directly excited by free-space lights due to momentum mismatch. here we propose a way to resonantly excite spps by lights without using any coupler and propose a kind of surface-plasmon-resonance (spr) system which can be simply composed by a metal film and a bottom medium whose real part of permittivity is less than unity. a light, which is incident from vacuum or air to the upper surface of the metal film, can directly excite a spp at the lower surface of the metal film. some special media can be selected as the bottom medium, including atomic vapor of electromagnetically induced transparency (eit) and some special solid media. in the atomic eit case, the steep dispersion at the transparent window can lead to interesting phenomena; e.g., very slow directional moving of the eit atoms can lead to unidirectional spps (reverse-propagating spp modes do not exist) and therefore lead to a highly asymmetric spr angle spectrum which is very sensitive to the velocity of the atoms. we also present feasible and simple designs of all-solid-state coupler-free spr systems, which are simply composed by a titanium film and a substrate of amorphous aluminum oxide or silicon oxide.
收录类别	SCI
语种	英语
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/14041]
专题	上海光学精密机械研究所_量子光学重点实验室
作者单位	1.[Du, Chunguang 2.Jing, Qingli] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 3.[Hu, Zhengfeng] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Du, Chunguang,Jing, Qingli,Hu, Zhengfeng. Coupler-free transition from light to surface plasmon polariton[J]. phys. rev. a,2015,91(1):13817.
APA	Du, Chunguang,Jing, Qingli,&Hu, Zhengfeng.(2015).Coupler-free transition from light to surface plasmon polariton.phys. rev. a,91(1),13817.
MLA	Du, Chunguang,et al."Coupler-free transition from light to surface plasmon polariton".phys. rev. a 91.1(2015):13817.