Polariton nanophotonics using phase-change materials

被引：136

作者：

Chaudhary, Kundan ^{[1
]}

Tamagnone, Michele ^{[1
]}

Yin, Xinghui ^{[1
]}

Spagele, Christina M. ^{[1
]}

Oscurato, Stefano L. ^{[1
,2
]}

Li, Jiahan ^{[3
]}

Persch, Christoph ^{[4
]}

Li, Ruoping ^{[1
]}

Rubin, Noah A. ^{[1
]}

Jauregui, Luis A. ^{[5
]}

Watanabe, Kenji ^{[6
]}

Taniguchi, Takashi ^{[6
]}

Kim, Philip ^{[7
]}

Wuttig, Matthias ^{[4
]}

Edgar, James H. ^{[3
]}

Ambrosio, Antonio ^{[8
,9
]}

Capasso, Federico ^{[1
]}

机构：

[1] Harvard Univ, Harvard John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Univ Naples Federico II, Complesso Univ Monte S Angelo, Dept Phys E Pancini, Via Cinthia 21, I-80126 Naples, Italy

[3] Kansas State Univ, Dept Chem Engn, Durland Hall, Manhattan, KS 66506 USA

[4] Rhein Westfal TH Aachen, Phys Inst IA 1, D-52056 Aachen, Germany

[5] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[6] Natl Inst Mat Sci, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[7] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[8] Harvard Univ, Ctr Nanoscale Syst, Cambridge, MA 02138 USA

[9] CNST Fdn Ist Italiano Tecnol, Via Pascoli 70-3, I-20133 Milan, Italy

来源：

NATURE COMMUNICATIONS | 2019年 / 10卷 / 1期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

LIGHT-MATTER INTERACTION; PHONON-POLARITONS;

D O I：

10.1038/s41467-019-12439-4

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Polaritons formed by the coupling of light and material excitations enable light-matter interactions at the nanoscale beyond what is currently possible with conventional optics. However, novel techniques are required to control the propagation of polaritons at the nanoscale and to implement the first practical devices. Here we report the experimental realization of polariton refractive and meta-optics in the mid-infrared by exploiting the properties of low-loss phonon polaritons in isotopically pure hexagonal boron nitride interacting with the surrounding dielectric environment comprising the low-loss phase change material Ge3Sb2Te6. We demonstrate rewritable waveguides, refractive optical elements such as lenses, prisms, and metalenses, which allow for polariton wavefront engineering and sub-wavelength focusing. This method will enable the realization of programmable miniaturized integrated optoelectronic devices and on-demand biosensors based on high quality phonon resonators.

引用

页数：6

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