Temperature-mediated invocation of the vacuum state for switchable ultrawide-angle and broadband deflection

Andriy E. Serebryannikov, Akhlesh Lakhtakia, Majid Aalizadeh, Ekmel Ozbay, Guy A.E. Vandenbosch

Research output: Contribution to journalArticle

Abstract

Temperature-mediated appearance and disappearance of a deflection grating in a diffracting structure is possible by employing InSb as the grating material. InSb transits from the dielectric state to the plasmonic state in the terahertz regime as the temperature increases, this transition being reversible. An intermediate state is the vacuum state in which the real part of the relative permittivity of InSb equals unity while the imaginary part is much smaller. Then the grating virtually disappears, deflection being impossible as only specular reflection can occur. This ON/OFF switching of deflection and relevant angular filtering are realizable over wide ranges of frequency and incidence angle by a temperature change of as low as 20 K. The vacuum state of InSb invoked for ON/OFF switching of deflection and relevant angular filtering can also be obtained for thermally tunable materials other than InSb as well as by using non-thermal mechanisms.

Original languageEnglish (US)
Article number15044
JournalScientific reports
Volume8
Issue number1
DOIs
StatePublished - Dec 1 2018

Fingerprint

Vacuum
Temperature
Transition Temperature
Incidence

All Science Journal Classification (ASJC) codes

  • General

Cite this

Serebryannikov, Andriy E. ; Lakhtakia, Akhlesh ; Aalizadeh, Majid ; Ozbay, Ekmel ; Vandenbosch, Guy A.E. / Temperature-mediated invocation of the vacuum state for switchable ultrawide-angle and broadband deflection. In: Scientific reports. 2018 ; Vol. 8, No. 1.
@article{56d3c5a0539647e0ae900c7be0823fe6,
title = "Temperature-mediated invocation of the vacuum state for switchable ultrawide-angle and broadband deflection",
abstract = "Temperature-mediated appearance and disappearance of a deflection grating in a diffracting structure is possible by employing InSb as the grating material. InSb transits from the dielectric state to the plasmonic state in the terahertz regime as the temperature increases, this transition being reversible. An intermediate state is the vacuum state in which the real part of the relative permittivity of InSb equals unity while the imaginary part is much smaller. Then the grating virtually disappears, deflection being impossible as only specular reflection can occur. This ON/OFF switching of deflection and relevant angular filtering are realizable over wide ranges of frequency and incidence angle by a temperature change of as low as 20 K. The vacuum state of InSb invoked for ON/OFF switching of deflection and relevant angular filtering can also be obtained for thermally tunable materials other than InSb as well as by using non-thermal mechanisms.",
author = "Serebryannikov, {Andriy E.} and Akhlesh Lakhtakia and Majid Aalizadeh and Ekmel Ozbay and Vandenbosch, {Guy A.E.}",
year = "2018",
month = "12",
day = "1",
doi = "10.1038/s41598-018-32977-z",
language = "English (US)",
volume = "8",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
number = "1",

}

Temperature-mediated invocation of the vacuum state for switchable ultrawide-angle and broadband deflection. / Serebryannikov, Andriy E.; Lakhtakia, Akhlesh; Aalizadeh, Majid; Ozbay, Ekmel; Vandenbosch, Guy A.E.

In: Scientific reports, Vol. 8, No. 1, 15044, 01.12.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Temperature-mediated invocation of the vacuum state for switchable ultrawide-angle and broadband deflection

AU - Serebryannikov, Andriy E.

AU - Lakhtakia, Akhlesh

AU - Aalizadeh, Majid

AU - Ozbay, Ekmel

AU - Vandenbosch, Guy A.E.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Temperature-mediated appearance and disappearance of a deflection grating in a diffracting structure is possible by employing InSb as the grating material. InSb transits from the dielectric state to the plasmonic state in the terahertz regime as the temperature increases, this transition being reversible. An intermediate state is the vacuum state in which the real part of the relative permittivity of InSb equals unity while the imaginary part is much smaller. Then the grating virtually disappears, deflection being impossible as only specular reflection can occur. This ON/OFF switching of deflection and relevant angular filtering are realizable over wide ranges of frequency and incidence angle by a temperature change of as low as 20 K. The vacuum state of InSb invoked for ON/OFF switching of deflection and relevant angular filtering can also be obtained for thermally tunable materials other than InSb as well as by using non-thermal mechanisms.

AB - Temperature-mediated appearance and disappearance of a deflection grating in a diffracting structure is possible by employing InSb as the grating material. InSb transits from the dielectric state to the plasmonic state in the terahertz regime as the temperature increases, this transition being reversible. An intermediate state is the vacuum state in which the real part of the relative permittivity of InSb equals unity while the imaginary part is much smaller. Then the grating virtually disappears, deflection being impossible as only specular reflection can occur. This ON/OFF switching of deflection and relevant angular filtering are realizable over wide ranges of frequency and incidence angle by a temperature change of as low as 20 K. The vacuum state of InSb invoked for ON/OFF switching of deflection and relevant angular filtering can also be obtained for thermally tunable materials other than InSb as well as by using non-thermal mechanisms.

UR - http://www.scopus.com/inward/record.url?scp=85054772169&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85054772169&partnerID=8YFLogxK

U2 - 10.1038/s41598-018-32977-z

DO - 10.1038/s41598-018-32977-z

M3 - Article

C2 - 30301912

AN - SCOPUS:85054772169

VL - 8

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 15044

ER -