AustralieFrV1, Main, Exploration, bibRecord, 00A226

Stimulated emission in the active planar optical waveguide made of silicon nanocrystals

Identifieur interne : 00A226 ( Main/Exploration ); précédent : 00A225; suivant : 00A227

Stimulated emission in the active planar optical waveguide made of silicon nanocrystals

Auteurs : K. Luterová [République tchèque] ; D. Navarro [Italie] ; M. Cazzanelli [Italie] ; T. Ostatnick [République tchèque, France] ; J. Valenta [République tchèque] ; S. Cheylan [Australie] ; I. Pelant [République tchèque] ; L. Pavesi [Italie]

Source :

physica status solidi (c) [ 1610-1634 ] ; 2005-06.

RBID : ISTEX:515127B4A0FBD75B6BA1DA20653E315077B40A29

English descriptors

KwdEn :
- Appl, Component lifetime, Continuous wave, Czech republic, Excitation, Fluence, Gmbh, Kgaa, Leaky mode, Leaky modes, Lett, Modal gain, Nanocrystals, Optical amplification, Optical gain, Optical losses, Optical waveguide, Peak intensity, Phys, Sample edge, Silicon, Silicon nanocrystals, Sio2 matrix, Solid lines, Spontaneous emission, Streak camera, Stripe length, Substrate modes, Variable stripe length, Verlag, Verlag gmbh, Waveguide, Weinheim.
Teeft :
- Appl, Component lifetime, Continuous wave, Czech republic, Excitation, Fluence, Gmbh, Kgaa, Leaky mode, Leaky modes, Lett, Modal gain, Nanocrystals, Optical amplification, Optical gain, Optical losses, Optical waveguide, Peak intensity, Phys, Sample edge, Silicon, Silicon nanocrystals, Sio2 matrix, Solid lines, Spontaneous emission, Streak camera, Stripe length, Substrate modes, Variable stripe length, Verlag, Verlag gmbh, Waveguide, Weinheim.

Abstract

Thin layers of silicon nanocrystals prepared by silicon‐ion implantation into silica substrate form active planar optical waveguides. Testing experiments of optical gain have been performed on a sample implanted to a dose of 4 × 1017 cm–2 by using the variable stripe length (VSL) technique. The photoluminescence collected from the sample facet shows spectrally narrow, polarization‐resolved transverse electric (TE) and transverse magnetic (TM) substrate modes. Continuous wave VSL revealed a reduction of optical losses in both modes only. On the contrary, a fast decay component due to amplified spontaneous emission is observed in time‐resolved VSL experiments. This fast component shows positive net modal optical gain of ∼12 cm–1. The observed superlinear emission as a function of pump intensity, accompanied by shortening of the fast component lifetime, supports further the observation of stimulated emission. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Url:

https://api.istex.fr/document/515127B4A0FBD75B6BA1DA20653E315077B40A29/fulltext/pdf

DOI: 10.1002/pssc.200461206

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Thin layers of silicon nanocrystals prepared by silicon‐ion implantation into silica substrate form active planar optical waveguides. Testing experiments of optical gain have been performed on a sample implanted to a dose of 4 × 1017 cm–2 by using the variable stripe length (VSL) technique. The photoluminescence collected from the sample facet shows spectrally narrow, polarization‐resolved transverse electric (TE) and transverse magnetic (TM) substrate modes. Continuous wave VSL revealed a reduction of optical losses in both modes only. On the contrary, a fast decay component due to amplified spontaneous emission is observed in time‐resolved VSL experiments. This fast component shows positive net modal optical gain of ∼12 cm–1. The observed superlinear emission as a function of pump intensity, accompanied by shortening of the fast component lifetime, supports further the observation of stimulated emission. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</div>
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Stimulated emission in the active planar optical waveguide made of silicon nanocrystals

Stimulated emission in the active planar optical waveguide made of silicon nanocrystals

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Abstract

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