Lasse Karvonen
Helsinki University of Technology
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Publication
Featured researches published by Lasse Karvonen.
Optics Express | 2009
Antti Säynätjoki; Tapani Alasaarela; Amit Khanna; Lasse Karvonen; Petri Stenberg; Markku Kuittinen; Ari Tervonen; Seppo Honkanen
Effect of angled sidewalls on the filling and properties of silicon slot waveguides is discussed. We demonstrate complete filling of slot waveguide structures with oxide material systems using the atomic layer deposition technique and discuss use of various slot filling materials. Properties of the optical modes in angled-sidewall slot waveguides are studied. Enhanced vertical confinement is obtained with certain waveguide parameters. The reduced effective mode area enhances e.g. nonlinear effects in the waveguide. We discuss the use of atomic layer deposition in realization of filled slot waveguides optimized for all-optical functionalities.
Proceedings of SPIE, the International Society for Optical Engineering | 2009
Antti Säynätjoki; Lasse Karvonen; Amit Khanna; Tapani Alasaarela; Ari Tervonen; Seppo Honkanen
Slot waveguides are designed for silicon-based nonlinear optics. The critical processes in manufacturing such waveguides are lithography, etching and slot filling. Their effects on the properties of the waveguides are studied.
Integrated Photonics and Nanophotonics Research and Applications | 2009
Antti Säynätjoki; Tapani Alasaarela; Amit Khanna; Lasse Karvonen; Ari Tervonen; Seppo Honkanen
Archive | 2015
Antti Säynätjoki; Lasse Karvonen; Juha Riikonen; Wonjae Kim; Soroush Mehravar; Robert A. Norwood; Nasser Peyghambarian; Khanh Kieu; Harri Lipsanen
Archive | 2015
Jannatul Susoma; Lasse Karvonen; Antti Säynätjoki; Soroush Mehravar; Robert A. Norwood; Nasser Peyghambarian; Kahn Kieu; Harri Lipsanen; Juha Riikonen
Archive | 2014
Anton Autere; Lasse Karvonen; Antti Säynätjoki; Matthieu Roussey; Elina Färm; Marianna Kemell; Xiaoguang Tu; T. Y. Liow; Guo-Qiang Lo; Mikko Ritala; Markku Leskelä; Seppo Honkanen; Zhipei Sun
Archive | 2014
Juha Riikonen; Kim Kim; Changfeng Li; Antti Säynätjoki; Lasse Karvonen; Harri Lipsanen
Archive | 2014
Lasse Karvonen; Antti Säynätjoki; Soroush Mehravar; Juha Riikonen; Nasser Peyghambarian; Khanh K.Kieu; Harri Lipsanen
Archive | 2014
Lasse Karvonen; Antti Säynätjoki; Soroush Mehravar; Juha Riikonen; Nasser Peyghambarian; Khanh K.Kieu; Harri Lipsanen
Archive | 2014
Lasse Karvonen; Antti Säynätjoki; Soroush Mehravar; Raul D. Rodriquez; Susanne Hartmann; D. R. T. Zahn; Seppo Honkanen; Robert A. Norwood; Nasser Peyghambarian; Khanh Kieu; Harri Lipsanen; Juha Riikonen
