Observation of laser oscillation in aggregates of ultrasmall silicon nanoparticles
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- M. H. Nayfeh
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
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- S. Rao
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
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- N. Barry
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
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- J. Therrien
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
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- G. Belomoin
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
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- A. Smith
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801
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- S. Chaieb
- Department of Theoretical and Applied Mechanics and the Beckman Institute for Science and Technology, University of Illinois at Urbana-Champaign, 104 South Wright Street, Urbana, Illinois 61801
Description
<jats:p>We report laser oscillation at ∼610 nm in aggregates of ultrasmall elemental Si nanoparticles. The particles are ultrabright red emitting, dispersed from bulk Si by electrochemistry. The aggregates are excited by radiation at 550–570 nm from a mercury lamp. Intense directed Gaussian beams, with a threshold, manifest the emission. We observe line narrowing, and speckle patterns, indicating spatial coherence. This microlasing constitutes an important step towards the realization of a laser on a chip, hence optoelectronics integration and optical interconnects.</jats:p>
Journal
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- Applied Physics Letters
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Applied Physics Letters 80 (1), 121-123, 2002-01-07
AIP Publishing
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Details 詳細情報について
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- CRID
- 1361981470695721728
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- ISSN
- 10773118
- 00036951
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- Data Source
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- Crossref