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Originally published in Science Express on 3 June 2004
Science 9 July 2004:
Vol. 305. no. 5681, pp. 227 - 229
DOI: 10.1126/science.1097968
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Reports

Control of Light Emission by 3D Photonic Crystals

Shinpei Ogawa, Masahiro Imada, Susumu Yoshimoto, Makoto Okano, Susumu Noda*

Three-dimensional (3D) photonic crystals containing artificial point defects have been fabricated to emit light at optical communications wavelengths. They were constructed by stacking 0.7-micrometer-period gallium arsenide striped layers, resulting in a 3D "woodpile" photonic crystal. Indium–gallium arsenide–phosphide quantum-well layers emitting at a wavelength of 1.55 micrometers were incorporated in the center of the crystal. Samples having up to nine stacked layers were constructed, and artificial point-defect cavities of different sizes were formed in the light-emitting layer. Light emission was suppressed in the photonic crystal regions, whereas cavity modes were successfully observed at the point defects and were size dependent.

Department of Electronic Science and Engineering, Kyoto University, Kyoto 615–8510, Japan.

* To whom correspondence should be addressed. E-mail: snoda{at}kuee.kyoto-u.ac.jp

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Simultaneous Inhibition and Redistribution of Spontaneous Light Emission in Photonic Crystals.
M. Fujita, S. Takahashi, Y. Tanaka, T. Asano, and S. Noda (2005)
Science 308, 1296-1298
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