Reciprocal space engineering with hyperuniform gold disordered surfaces

被引：31

作者：

Castro-Lopez, Marta ^{[1
]}

Gaio, Michele ^{[1
]}

Sellers, Steven ^{[2
,3
]}

Gkantzounis, George ^{[2
,3
]}

Florescu, Marian ^{[2
,3
]}

Sapienza, Riccardo ^{[1
]}

机构：

[1] Kings Coll London, Dept Phys, London WC2R 2LS, England

[2] Univ Surrey, Adv Technol Inst, Guildford GU2 7XH, Surrey, England

[3] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England

来源：

APL PHOTONICS | 2017年 / 2卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

BROAD-BAND; NANOSTRUCTURES; GAPS;

D O I：

10.1063/1.4983990

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Hyperuniform geometries feature correlated disordered topologies which follow from a tailored k-space design. Here, we study gold plasmonic hyperuniform disordered surfaces and, by momentum spectroscopy, we report evidence of kspace engineering on both light scattering and light emission. Even if the structures lack a well-defined periodicity, emission and scattering are directional in ring-shaped patterns. The opening of these rotational-symmetric patterns scales with the hyperuniform correlation length parameter as predicted via the spectral function method. (C) 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.

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