Strong coupling of a surface grating to a structurally chiral volume grating

James P. McIlroy, Martin W. McCall, Akhlesh Lakhtakia, Ian J. Hodgkinson

Research output: Contribution to journalConference article

Abstract

The problem of coupling a surface dielectric grating consisting of a sinusoidal corrugation to a structurally chiral volume grating has been formulated and solved with results showing the robust co-existence of phenomena characteristic of both types of grating: namely Rayleigh-Wood anomalies and Bragg zones. A mechanism to strengthen the coupling between both grating types has now been included in the model, namely a quarter wave plate whose birefringence converts normally incident linearly polarised light of the chiral Bragg wavelength into transmitted circularly polarised light. It is possible to tailor the period of the sinusoidal surface grating such that the scattering of obliquely incident light from above, by the surface grating, will lead to a specific non-zero order being scattered onto a path which is normally incident on the rest of the structure. Significantly, such orders exhibit the circular Bragg phenomenon in reflection and transmission only if both grating types are present, making this a truly coupled grating effect.

Original languageEnglish (US)
Article number11
Pages (from-to)65-76
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5508
DOIs
StatePublished - Dec 1 2004
EventComplex Mediums V: Light and Complexity - Denver, CO, United States
Duration: Aug 4 2004Aug 5 2004

Fingerprint

Strong Coupling
Gratings
gratings
Light polarization
Birefringence
Wood
Scattering
polarized light
Wavelength
Coexistence
Rayleigh
Anomaly
Convert
birefringence
Linearly
anomalies
Path
scattering
wavelengths

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

@article{8a3a4e06b975400fb3cde583368df9c3,
title = "Strong coupling of a surface grating to a structurally chiral volume grating",
abstract = "The problem of coupling a surface dielectric grating consisting of a sinusoidal corrugation to a structurally chiral volume grating has been formulated and solved with results showing the robust co-existence of phenomena characteristic of both types of grating: namely Rayleigh-Wood anomalies and Bragg zones. A mechanism to strengthen the coupling between both grating types has now been included in the model, namely a quarter wave plate whose birefringence converts normally incident linearly polarised light of the chiral Bragg wavelength into transmitted circularly polarised light. It is possible to tailor the period of the sinusoidal surface grating such that the scattering of obliquely incident light from above, by the surface grating, will lead to a specific non-zero order being scattered onto a path which is normally incident on the rest of the structure. Significantly, such orders exhibit the circular Bragg phenomenon in reflection and transmission only if both grating types are present, making this a truly coupled grating effect.",
author = "McIlroy, {James P.} and McCall, {Martin W.} and Akhlesh Lakhtakia and Hodgkinson, {Ian J.}",
year = "2004",
month = "12",
day = "1",
doi = "10.1117/12.559609",
language = "English (US)",
volume = "5508",
pages = "65--76",
journal = "Proceedings of SPIE - The International Society for Optical Engineering",
issn = "0277-786X",
publisher = "SPIE",

}

Strong coupling of a surface grating to a structurally chiral volume grating. / McIlroy, James P.; McCall, Martin W.; Lakhtakia, Akhlesh; Hodgkinson, Ian J.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5508, 11, 01.12.2004, p. 65-76.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Strong coupling of a surface grating to a structurally chiral volume grating

AU - McIlroy, James P.

AU - McCall, Martin W.

AU - Lakhtakia, Akhlesh

AU - Hodgkinson, Ian J.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - The problem of coupling a surface dielectric grating consisting of a sinusoidal corrugation to a structurally chiral volume grating has been formulated and solved with results showing the robust co-existence of phenomena characteristic of both types of grating: namely Rayleigh-Wood anomalies and Bragg zones. A mechanism to strengthen the coupling between both grating types has now been included in the model, namely a quarter wave plate whose birefringence converts normally incident linearly polarised light of the chiral Bragg wavelength into transmitted circularly polarised light. It is possible to tailor the period of the sinusoidal surface grating such that the scattering of obliquely incident light from above, by the surface grating, will lead to a specific non-zero order being scattered onto a path which is normally incident on the rest of the structure. Significantly, such orders exhibit the circular Bragg phenomenon in reflection and transmission only if both grating types are present, making this a truly coupled grating effect.

AB - The problem of coupling a surface dielectric grating consisting of a sinusoidal corrugation to a structurally chiral volume grating has been formulated and solved with results showing the robust co-existence of phenomena characteristic of both types of grating: namely Rayleigh-Wood anomalies and Bragg zones. A mechanism to strengthen the coupling between both grating types has now been included in the model, namely a quarter wave plate whose birefringence converts normally incident linearly polarised light of the chiral Bragg wavelength into transmitted circularly polarised light. It is possible to tailor the period of the sinusoidal surface grating such that the scattering of obliquely incident light from above, by the surface grating, will lead to a specific non-zero order being scattered onto a path which is normally incident on the rest of the structure. Significantly, such orders exhibit the circular Bragg phenomenon in reflection and transmission only if both grating types are present, making this a truly coupled grating effect.

UR - http://www.scopus.com/inward/record.url?scp=10844242963&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10844242963&partnerID=8YFLogxK

U2 - 10.1117/12.559609

DO - 10.1117/12.559609

M3 - Conference article

AN - SCOPUS:10844242963

VL - 5508

SP - 65

EP - 76

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

M1 - 11

ER -