79322 20200117211559.0 doi 10.1021/acsphotonics.8b00062 sideral 107156 ART-2018-107156 eng Lee, In-Ho Anisotropic acoustic plasmons in black phosphorus 2018 Access copy available to the general public Unrestricted Acoustic plasmon modes tightly coupled between a two-dimensional material and another conducting layer can exhibit optical confinement not possible with conventional plasmons. Here, we investigate acoustic plasmons supported in a monolayer and multilayers of black phosphorus (BP) placed shortly above a conducting plate. In the presence of a conducting plate, the acoustic plasmon dispersion for the armchair direction is found to exhibit the characteristic linear scaling in the mid- and far-infrared regime while it largely deviates from that in the long-wavelength limit and near-infrared regime. For the zigzag direction, such scaling behavior is not evident due to relatively tighter plasmon confinement. Further, we demonstrate a novel design for an acoustic plasmon resonator that exhibits higher plasmon confinement and resonance efficiency than BP ribbon resonators in the mid-infrared and longer wavelength regime. The theoretical framework and new resonator designs studied here provide a practical route toward the experimental verification of acoustic plasmons in BP and open up the possibility to develop novel plasmonic and optoelectronic devices that can leverage its strong in-plane anisotropy and thickness-dependent band gap. info:eu-repo/grantAgreement/ES/MINECO/MAT2014-53432-C5 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 7.143 2018 MATERIALS SCIENCE, MULTIDISCIPLINARY 39 / 293 = 0.133 2018 Q1 T1 OPTICS 6 / 95 = 0.063 2018 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 19 / 94 = 0.202 2018 Q1 T1 PHYSICS, CONDENSED MATTER 14 / 68 = 0.206 2018 Q1 T1 PHYSICS, APPLIED 17 / 148 = 0.115 2018 Q1 T1 2.983 2018 Atomic and Molecular Physics, and Optics 2018 Q1 Electronic, Optical and Magnetic Materials 2018 Q1 Electrical and Electronic Engineering 2018 Q1 Biotechnology 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0001-9273-8165 Martin-Moreno, Luis Universidad de Zaragoza Mohr, Daniel A. Khaliji, Kaveh Low, Tony Oh, Sang-Hyun 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 5, 6 (2018), 2208-2216 ACS photonics ACS photonics 2330-4022 536211 http://zaguan.unizar.es/record/79322/files/texto_completo.pdf Postprint 64036 http://zaguan.unizar.es/record/79322/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:79322 articulos driver 2020-01-17-21:10:57 ARTICLE