Enhancement of the Purcell factor in multiperiodic hyperboliclike metamaterials

被引：33

作者：

Chebykin, A. V. ^{[1
]}

Babicheva, V. E. ^{[1
,2
]}

Iorsh, I. V. ^{[1
]}

Orlov, A. A. ^{[1
]}

Belov, P. A. ^{[1
]}

Zhukovsky, S. V. ^{[1
,3
]}

机构：

[1] ITMO Univ, Kronverkskiy Pr 49, St Petersburg 197101, Russia

[2] Georgia State Univ, Ctr Nanoopt, POB 3965, Atlanta, GA 30302 USA

[3] Tech Univ Denmark, Dept Photon Engn, DTU Foton, Orsteds Plads 343, DK-2800 Lyngby, Denmark

来源：

PHYSICAL REVIEW A | 2016年 / 93卷 / 03期

基金：

欧盟第七框架计划; 俄罗斯基础研究基金会;

关键词：

CONTROLLING SPONTANEOUS EMISSION; VOLUME PLASMON POLARITONS; NEGATIVE REFRACTION; LIGHT-EMISSION; NONLINEARITY; TRANSITIONS; MEDIA;

D O I：

10.1103/PhysRevA.93.033855

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Spontaneous emission enhancement is theoretically investigated in multiperiodic metal-dielectric multilayers (multiperiodic hyperboliclike metamaterials or photonic hypercrystals) where the unit cell consists of two layers of different dielectrics alternating with identical metallic layers. It is shown that the Purcell factor in such multiperiodic structures exceeds the Purcell factor in ordinary periodic hyperbolic or plasmonic metamaterials by a factor of 4, which in general makes it possible to maximize interaction between emitting centers and nearby plasmonic structures. This enhancement is numerically characterized and shown to be related to the interplay between surface and volume plasmonic excitations in the multilayer metamaterial. We separately identify the influence of proximity between the emitter and the closest metal-dielectric boundary (including the quenching effect and the enhanced coupling of the dipole radiation and surface plasmon polaritons) and the effects related to the structural composition of the hypercrystal. The Purcell-factor modification brought about by placing a cavity layer into a multiperiodic structure was also characterized.

引用

页数：9

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