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Growth, processing, and optical properties of epitaxial Er_2O_3 on silicon

Michael, C. P. and Yuen, H. B. and Sabnis, V. A. and Johnson, T. J. and Sewell, R. and Smith, R. and Jamora, A. and Clark, A. and Semans, S. and Atanackovic, P. B. and Painter, O. (2008) Growth, processing, and optical properties of epitaxial Er_2O_3 on silicon. Optics Express, 16 (24). pp. 19649-19666. ISSN 1094-4087. doi:10.1364/OE.16.019649.

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Erbium-doped materials have been investigated for generating and amplifying light in low-power chip-scale optical networks on silicon, but several effects limit their performance in dense microphotonic applications. Stoichiometric ionic crystals are a potential alternative that achieve an Er^(3+) density 100× greater. We report the growth, processing, material characterization, and optical properties of single-crystal Er_2O_3 epitaxially grown on silicon. A peak Er^(3+) resonant absorption of 364 dB/cm at 1535nm with minimal background loss places a high limit on potential gain. Using high-quality microdisk resonators, we conduct thorough C/L-band radiative efficiency and lifetime measurements and observe strong upconverted luminescence near 550 and 670 nm.

Item Type:Article
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Painter, O.0000-0002-1581-9209
Additional Information:© 2008 Optical Society of America. Received 25 Aug 2008; revised 6 Nov 2008; accepted 8 Nov 2008; published 12 Nov 2008. This work was funded by the DARPA EPIC program. We would like to thank Q. Lin for his fabrication assistance, and CPM would like to thank the Moore Foundation and the NSF for fellowship support.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Issue or Number:24
Classification Code: OCIS codes: (160.4760) Materials – optical properties; (160.5690) Rare-earch-doped materials; (190.7220) Upconversion; (230.5750) Resonators
Record Number:CaltechAUTHORS:20090504-080234264
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14136
Deposited By: Tony Diaz
Deposited On:15 Jul 2009 22:49
Last Modified:08 Nov 2021 22:43

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