Photonic bandgap engineering with inverse opal multistacks of different refractive index contrasts

Dae Kue Hwang; Heeso Noh; Hui Cao; Robert P.H. Chang

doi:10.1063/1.3216582

Photonic bandgap engineering with inverse opal multistacks of different refractive index contrasts

Dae Kue Hwang, Heeso Noh, Hui Cao, Robert P.H. Chang

Division of Energy Techonology

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36 Scopus citations

Abstract

We have self-assembled photonic crystal with a multistack structure using same size of spheres but from materials with different refractive indices. Al₂ O₃, ZnO, and TiO₂ are infiltrated into opal templates by atomic layer deposition. Stacking multiple inverse opal structures with different refractive index contrasts broadens the reflection bands dramatically. Numerical simulations with plane wave expansion method show good agreement with experimental results.

Original language	English
Article number	091101
Journal	Applied Physics Letters
Volume	95
Issue number	9
DOIs	https://doi.org/10.1063/1.3216582
State	Published - 2009

Bibliographical note

Funding Information:
This research has been funded by NSF Grant No. ECCS-0823345 and the use of central facilities has been funded by NSF under Grant No. DMR-0520513.

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10.1063/1.3216582

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title = "Photonic bandgap engineering with inverse opal multistacks of different refractive index contrasts",

abstract = "We have self-assembled photonic crystal with a multistack structure using same size of spheres but from materials with different refractive indices. Al2 O3, ZnO, and TiO2 are infiltrated into opal templates by atomic layer deposition. Stacking multiple inverse opal structures with different refractive index contrasts broadens the reflection bands dramatically. Numerical simulations with plane wave expansion method show good agreement with experimental results.",

author = "Hwang, {Dae Kue} and Heeso Noh and Hui Cao and Chang, {Robert P.H.}",

note = "Funding Information: This research has been funded by NSF Grant No. ECCS-0823345 and the use of central facilities has been funded by NSF under Grant No. DMR-0520513.",

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AU - Noh, Heeso

AU - Cao, Hui

AU - Chang, Robert P.H.

N1 - Funding Information: This research has been funded by NSF Grant No. ECCS-0823345 and the use of central facilities has been funded by NSF under Grant No. DMR-0520513.

PY - 2009

Y1 - 2009

N2 - We have self-assembled photonic crystal with a multistack structure using same size of spheres but from materials with different refractive indices. Al2 O3, ZnO, and TiO2 are infiltrated into opal templates by atomic layer deposition. Stacking multiple inverse opal structures with different refractive index contrasts broadens the reflection bands dramatically. Numerical simulations with plane wave expansion method show good agreement with experimental results.

AB - We have self-assembled photonic crystal with a multistack structure using same size of spheres but from materials with different refractive indices. Al2 O3, ZnO, and TiO2 are infiltrated into opal templates by atomic layer deposition. Stacking multiple inverse opal structures with different refractive index contrasts broadens the reflection bands dramatically. Numerical simulations with plane wave expansion method show good agreement with experimental results.

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Photonic bandgap engineering with inverse opal multistacks of different refractive index contrasts

Abstract

Bibliographical note

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