Nonlinear optical response of type-II Weyl fermions in two dimensions

Yaraslau Tamashevich; Leone Di Mauro Villari; Marco Ornigotti

doi:10.1103/PhysRevB.105.195102

Nonlinear optical response of type-II Weyl fermions in two dimensions

Yaraslau Tamashevich, Leone Di Mauro Villari, Marco Ornigotti

Fysiikka

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

7 Sitaatiot (Scopus)

17 Lataukset (Pure)

Abstrakti

We present a theoretical model to study the nonlinear optical response of materials with a low-energy spectrum characterized by strongly tilted, type-II Weyl cones in two dimensions, which we call 2D Weyl materials. Our findings reveal that the tilted nature of the Weyl cones is responsible for the appearance of even harmonics in the nonlinear signal, as well as its strong polarization dependence. We discuss how it is possible to control such a nonlinear response and envision how 2D Weyl materials can be used to realize different photonic devices for sensing applications.

Alkuperäiskieli	Englanti
Artikkeli	195102
Julkaisu	Physical Review B
Vuosikerta	105
Numero	19
DOI - pysyväislinkit	https://doi.org/10.1103/PhysRevB.105.195102
Tila	Julkaistu - 15 toukok. 2022
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Julkaisufoorumi-taso

Jufo-taso 2

!!ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Pääsy asiakirjaan

10.1103/PhysRevB.105.195102Lisenssi: Unspecified

PhysRevB.105.195102
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Final published version, 732 KBLisenssi: Unspecified

https://urn.fi/URN:NBN:fi:tuni-202208026152Lisenssi: Unspecified

Siteeraa tätä

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title = "Nonlinear optical response of type-II Weyl fermions in two dimensions",

abstract = "We present a theoretical model to study the nonlinear optical response of materials with a low-energy spectrum characterized by strongly tilted, type-II Weyl cones in two dimensions, which we call 2D Weyl materials. Our findings reveal that the tilted nature of the Weyl cones is responsible for the appearance of even harmonics in the nonlinear signal, as well as its strong polarization dependence. We discuss how it is possible to control such a nonlinear response and envision how 2D Weyl materials can be used to realize different photonic devices for sensing applications.",

author = "Yaraslau Tamashevich and Villari, {Leone Di Mauro} and Marco Ornigotti",

note = "Funding Information: Y.T. and M.O. acknowledge the financial support of the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), Decision No. 320165. Y.T. also acknowledges support from the Finnish Cultural Foundation, Decision No. 00221008. L.D.M.V. acknowledges support from the European Commission under the EU Horizon 2020 MSCA-RISE-2019 programme (Project No. 873028 HYDROTRONICS) and of the Leverhulme Trust under Grant No. RPG-2019-363. Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

year = "2022",

month = may,

day = "15",

doi = "10.1103/PhysRevB.105.195102",

language = "English",

volume = "105",

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T1 - Nonlinear optical response of type-II Weyl fermions in two dimensions

AU - Tamashevich, Yaraslau

AU - Villari, Leone Di Mauro

AU - Ornigotti, Marco

N1 - Funding Information: Y.T. and M.O. acknowledge the financial support of the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), Decision No. 320165. Y.T. also acknowledges support from the Finnish Cultural Foundation, Decision No. 00221008. L.D.M.V. acknowledges support from the European Commission under the EU Horizon 2020 MSCA-RISE-2019 programme (Project No. 873028 HYDROTRONICS) and of the Leverhulme Trust under Grant No. RPG-2019-363. Publisher Copyright: © 2022 American Physical Society.

PY - 2022/5/15

Y1 - 2022/5/15

N2 - We present a theoretical model to study the nonlinear optical response of materials with a low-energy spectrum characterized by strongly tilted, type-II Weyl cones in two dimensions, which we call 2D Weyl materials. Our findings reveal that the tilted nature of the Weyl cones is responsible for the appearance of even harmonics in the nonlinear signal, as well as its strong polarization dependence. We discuss how it is possible to control such a nonlinear response and envision how 2D Weyl materials can be used to realize different photonic devices for sensing applications.

AB - We present a theoretical model to study the nonlinear optical response of materials with a low-energy spectrum characterized by strongly tilted, type-II Weyl cones in two dimensions, which we call 2D Weyl materials. Our findings reveal that the tilted nature of the Weyl cones is responsible for the appearance of even harmonics in the nonlinear signal, as well as its strong polarization dependence. We discuss how it is possible to control such a nonlinear response and envision how 2D Weyl materials can be used to realize different photonic devices for sensing applications.

U2 - 10.1103/PhysRevB.105.195102

DO - 10.1103/PhysRevB.105.195102

M3 - Article

AN - SCOPUS:85130330688

SN - 2469-9950

VL - 105

JO - Physical Review B

JF - Physical Review B

IS - 19

M1 - 195102

ER -

Nonlinear optical response of type-II Weyl fermions in two dimensions

Abstrakti

Julkaisufoorumi-taso

!!ASJC Scopus subject areas

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