Topological Spaser

Jhih Sheng Wu; Vadym Apalkov; Mark I. Stockman

doi:10.1103/PhysRevLett.124.017701

Topological Spaser

Jhih Sheng Wu^*, Vadym Apalkov, Mark I. Stockman

^*Corresponding author for this work

Department of Photonics

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We theoretically introduce a topological spaser, which consists of a hexagonal array of plasmonic metal nanoshells containing an achiral gain medium in their cores. Such a spaser can generate two mutually time-reversed chiral surface plasmon modes in the K and K′ valleys, which carry the opposite topological charges, ±1, and are described by a two-dimensional E′ representation of the D3h point symmetry group. Due to the mode competition, this spaser exhibits a bistability: only one of these two modes generates, which is a spontaneous symmetry breaking. Such a spaser can be used for an ultrafast all-optical memory and information processing, and biomedical detection and sensing with chirality resolution.

Original language	English
Article number	017701
Journal	Physical Review Letters
Volume	124
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.124.017701
State	Published - 6 Jan 2020

Access to Document

10.1103/PhysRevLett.124.017701

Fingerprint Dive into the research topics of 'Topological Spaser'. Together they form a unique fingerprint.

Cite this

@article{65b00429f83742d696c1958c1abdb35f,

title = "Topological Spaser",

abstract = "We theoretically introduce a topological spaser, which consists of a hexagonal array of plasmonic metal nanoshells containing an achiral gain medium in their cores. Such a spaser can generate two mutually time-reversed chiral surface plasmon modes in the K and K′ valleys, which carry the opposite topological charges, ±1, and are described by a two-dimensional E′ representation of the D3h point symmetry group. Due to the mode competition, this spaser exhibits a bistability: only one of these two modes generates, which is a spontaneous symmetry breaking. Such a spaser can be used for an ultrafast all-optical memory and information processing, and biomedical detection and sensing with chirality resolution.",

author = "Wu, {Jhih Sheng} and Vadym Apalkov and Stockman, {Mark I.}",

year = "2020",

month = jan,

day = "6",

doi = "10.1103/PhysRevLett.124.017701",

language = "English",

volume = "124",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Topological Spaser

AU - Wu, Jhih Sheng

AU - Apalkov, Vadym

AU - Stockman, Mark I.

PY - 2020/1/6

Y1 - 2020/1/6

N2 - We theoretically introduce a topological spaser, which consists of a hexagonal array of plasmonic metal nanoshells containing an achiral gain medium in their cores. Such a spaser can generate two mutually time-reversed chiral surface plasmon modes in the K and K′ valleys, which carry the opposite topological charges, ±1, and are described by a two-dimensional E′ representation of the D3h point symmetry group. Due to the mode competition, this spaser exhibits a bistability: only one of these two modes generates, which is a spontaneous symmetry breaking. Such a spaser can be used for an ultrafast all-optical memory and information processing, and biomedical detection and sensing with chirality resolution.

AB - We theoretically introduce a topological spaser, which consists of a hexagonal array of plasmonic metal nanoshells containing an achiral gain medium in their cores. Such a spaser can generate two mutually time-reversed chiral surface plasmon modes in the K and K′ valleys, which carry the opposite topological charges, ±1, and are described by a two-dimensional E′ representation of the D3h point symmetry group. Due to the mode competition, this spaser exhibits a bistability: only one of these two modes generates, which is a spontaneous symmetry breaking. Such a spaser can be used for an ultrafast all-optical memory and information processing, and biomedical detection and sensing with chirality resolution.

UR - http://www.scopus.com/inward/record.url?scp=85078307439&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.124.017701

DO - 10.1103/PhysRevLett.124.017701

M3 - Article

C2 - 31976714

AN - SCOPUS:85078307439

VL - 124

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 1

M1 - 017701

ER -

Topological Spaser

Abstract

Access to Document

Other files and links

Cite this