Chemosorption-related shift of a photonic bandgap in photoconductive ZnO inverse opal

Worawut Khunsin; Sergei G. Romanov; Michael Scharrer; Larry K. Aagesen; Robert P.H. Chang; Clivia M.Sotomayor Torres

doi:10.1364/OL.33.000461

Chemosorption-related shift of a photonic bandgap in photoconductive ZnO inverse opal

Worawut Khunsin, Sergei G. Romanov, Michael Scharrer, Larry K. Aagesen, Robert P.H. Chang, Clivia M.Sotomayor Torres

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

A change of up to 40% of the relative transmission at the photonic bandgap edge has been observed in photoconductive inverted ZnO opals under ultraviolet laser irradiation. This effect has been related to the irradiation-stimulated change of the refraction index of the photonic crystal. The desorption (chemosorption) of oxygen molecules on the surface of the ZnO backbone leading to destruction (formation) of a depletion layer at the ZnO surface has been suggested as the mechanism responsible for the slow variation of polarizability of the inverted ZnO opal.

Original language	English (US)
Pages (from-to)	461-463
Number of pages	3
Journal	Optics Letters
Volume	33
Issue number	5
DOIs	https://doi.org/10.1364/OL.33.000461
State	Published - Mar 1 2008

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "A change of up to 40% of the relative transmission at the photonic bandgap edge has been observed in photoconductive inverted ZnO opals under ultraviolet laser irradiation. This effect has been related to the irradiation-stimulated change of the refraction index of the photonic crystal. The desorption (chemosorption) of oxygen molecules on the surface of the ZnO backbone leading to destruction (formation) of a depletion layer at the ZnO surface has been suggested as the mechanism responsible for the slow variation of polarizability of the inverted ZnO opal.",

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AU - Khunsin, Worawut

AU - Romanov, Sergei G.

AU - Scharrer, Michael

AU - Aagesen, Larry K.

AU - Chang, Robert P.H.

AU - Torres, Clivia M.Sotomayor

PY - 2008/3/1

Y1 - 2008/3/1

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AB - A change of up to 40% of the relative transmission at the photonic bandgap edge has been observed in photoconductive inverted ZnO opals under ultraviolet laser irradiation. This effect has been related to the irradiation-stimulated change of the refraction index of the photonic crystal. The desorption (chemosorption) of oxygen molecules on the surface of the ZnO backbone leading to destruction (formation) of a depletion layer at the ZnO surface has been suggested as the mechanism responsible for the slow variation of polarizability of the inverted ZnO opal.

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Chemosorption-related shift of a photonic bandgap in photoconductive ZnO inverse opal

Abstract

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