physica status solidi (c)
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Stefan Hildebrandt (Editor-in-Chief)
Online ISSN: 1610-1642
Cover Picture: Phys. Status Solidi C 6/7
The article by Luigi Sirleto et al. on p. 1644 investigates an approach based on Raman scattering in porous silicon in order to overcome limitations inherent to the physics of silicon and to obtain light generation and/or amplification in this material. The design of a Raman amplifier in a porous silicon waveguide is proposed. The authors consider a monomodal channel waveguide having a 2 μm wide rib and a 2.15 μm thick core layer. The rib channel waveguide is defined by a lateral thickness of 1.4 μm. The thickness of the bottom layers is taken to be 1 μm.
The cover picture shows the field profile of the pump beam; a similar profile is also obtained for the probe light. The field is well confined and the modal overlap between the pump and probe fields is excellent, as being necessary in order to achieve stimulated Raman scattering. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)