Control of the rings of exceptional points in photonic crystal slabs

Piotr Marek Kaminski; Olav Breinbjerg; Jesper Mørk; Samel Arslanagic

doi:10.1109/CLEOE-EQEC.2017.8087806

Control of the rings of exceptional points in photonic crystal slabs

Piotr Marek Kaminski
, Olav Breinbjerg
, Jesper Mørk
, Samel Arslanagic

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

Abstract

Accidental Dirac cones of linear dispersion can occur in photonic crystal (PhC) structures [1]. These configurations can be easily manufactured providing an accessible platform for studying topological properties of Dirac cones and their influence on light-matter interactions. Recently, it has been shown that when the system becomes non-Hermitian, e.g. it is an open system exhibiting radiation losses, Dirac cones can be deformed spawning rings of exceptional points [2]. Within the ring, the dispersion follows the two-dimensional flat band which provides a high density of states and therefore high Purcell factors. Moreover, strong dispersion of loss in the center of the Brillouin zone allows to significantly improve the performance of large-area single mode PhC lasers [3]. These lasers exploit bound states in the continuum [4], and we discuss their relation to Dirac cones.

Original language	English
Title of host publication	2017 Conference on Lasers and Electro-optics Europe and European Quantum Electronics Conference
Number of pages	1
Publisher	IEEE
Publication date	2017
Pages	1-1
ISBN (Print)	9781509067367
DOIs	https://doi.org/10.1109/CLEOE-EQEC.2017.8087806
Publication status	Published - 2017
Event	The 2017 European Conference on Lasers and Electro-Optics - Munich, Germany Duration: 25 Jun 2017 → 29 Jun 2017 http://www.cleoeurope.org/

Conference

Conference	The 2017 European Conference on Lasers and Electro-Optics
Country/Territory	Germany
City	Munich
Period	25/06/2017 → 29/06/2017
Internet address	http://www.cleoeurope.org/

Keywords

Slabs
Photonic crystals
Dispersion
Laser modes
Ring lasers
Eigenvalues and eigenfunctions
Surface emitting lasers

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title = "Control of the rings of exceptional points in photonic crystal slabs",

abstract = "Accidental Dirac cones of linear dispersion can occur in photonic crystal (PhC) structures [1]. These configurations can be easily manufactured providing an accessible platform for studying topological properties of Dirac cones and their influence on light-matter interactions. Recently, it has been shown that when the system becomes non-Hermitian, e.g. it is an open system exhibiting radiation losses, Dirac cones can be deformed spawning rings of exceptional points [2]. Within the ring, the dispersion follows the two-dimensional flat band which provides a high density of states and therefore high Purcell factors. Moreover, strong dispersion of loss in the center of the Brillouin zone allows to significantly improve the performance of large-area single mode PhC lasers [3]. These lasers exploit bound states in the continuum [4], and we discuss their relation to Dirac cones.",

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author = "Kaminski, \{Piotr Marek\} and Olav Breinbjerg and Jesper M{\o}rk and Samel Arslanagic",

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doi = "10.1109/CLEOE-EQEC.2017.8087806",

language = "English",

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booktitle = "2017 Conference on Lasers and Electro-optics Europe and European Quantum Electronics Conference",

publisher = "IEEE",

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note = "The 2017 European Conference on Lasers and Electro-Optics, CLEO Europe 2017 ; Conference date: 25-06-2017 Through 29-06-2017",

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Kaminski, PM, Breinbjerg, O, Mørk, J & Arslanagic, S 2017, Control of the rings of exceptional points in photonic crystal slabs. in 2017 Conference on Lasers and Electro-optics Europe and European Quantum Electronics Conference . IEEE, pp. 1-1, The 2017 European Conference on Lasers and Electro-Optics, Munich, Bavaria, Germany, 25/06/2017. https://doi.org/10.1109/CLEOE-EQEC.2017.8087806

Control of the rings of exceptional points in photonic crystal slabs. / Kaminski, Piotr Marek; Breinbjerg, Olav; Mørk, Jesper et al.
2017 Conference on Lasers and Electro-optics Europe and European Quantum Electronics Conference . IEEE, 2017. p. 1-1.

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

TY - ABST

T1 - Control of the rings of exceptional points in photonic crystal slabs

AU - Kaminski, Piotr Marek

AU - Breinbjerg, Olav

AU - Mørk, Jesper

AU - Arslanagic, Samel

PY - 2017

Y1 - 2017

N2 - Accidental Dirac cones of linear dispersion can occur in photonic crystal (PhC) structures [1]. These configurations can be easily manufactured providing an accessible platform for studying topological properties of Dirac cones and their influence on light-matter interactions. Recently, it has been shown that when the system becomes non-Hermitian, e.g. it is an open system exhibiting radiation losses, Dirac cones can be deformed spawning rings of exceptional points [2]. Within the ring, the dispersion follows the two-dimensional flat band which provides a high density of states and therefore high Purcell factors. Moreover, strong dispersion of loss in the center of the Brillouin zone allows to significantly improve the performance of large-area single mode PhC lasers [3]. These lasers exploit bound states in the continuum [4], and we discuss their relation to Dirac cones.

AB - Accidental Dirac cones of linear dispersion can occur in photonic crystal (PhC) structures [1]. These configurations can be easily manufactured providing an accessible platform for studying topological properties of Dirac cones and their influence on light-matter interactions. Recently, it has been shown that when the system becomes non-Hermitian, e.g. it is an open system exhibiting radiation losses, Dirac cones can be deformed spawning rings of exceptional points [2]. Within the ring, the dispersion follows the two-dimensional flat band which provides a high density of states and therefore high Purcell factors. Moreover, strong dispersion of loss in the center of the Brillouin zone allows to significantly improve the performance of large-area single mode PhC lasers [3]. These lasers exploit bound states in the continuum [4], and we discuss their relation to Dirac cones.

KW - Slabs

KW - Photonic crystals

KW - Dispersion

KW - Laser modes

KW - Ring lasers

KW - Eigenvalues and eigenfunctions

KW - Surface emitting lasers

U2 - 10.1109/CLEOE-EQEC.2017.8087806

DO - 10.1109/CLEOE-EQEC.2017.8087806

M3 - Conference abstract in proceedings

SN - 9781509067367

SP - 1

EP - 1

BT - 2017 Conference on Lasers and Electro-optics Europe and European Quantum Electronics Conference

PB - IEEE

T2 - The 2017 European Conference on Lasers and Electro-Optics

Y2 - 25 June 2017 through 29 June 2017

ER -

Control of the rings of exceptional points in photonic crystal slabs

Abstract

Conference

Keywords

Access to Document

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