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Dr. Joab Di Francesco
at Ecole Polytechnique Federale de Lausanne
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Author
Publications (4)
SPIE Journal Paper | 20 June 2014
On-chip near-infrared optical spectrometer based on single-mode Epo waveguide and gold nanoantennas
Maurine Malak, Konstantins Jefimovs, Irène Philipoussis, Joab Di Francesco, Toralf Scharf
JM3, Vol. 13, Issue 02, 023011, (June 2014) https://doi.org/10.1117/12.10.1117/1.JMM.13.2.023011
KEYWORDS: Waveguides, Spectroscopy, Gold, Objectives, Fourier transforms, Single mode fibers, Electron beam lithography, Mirrors, Nanostructures, Nanoantennas
Proceedings Article | 18 December 2012 Paper
High numerical aperture silicon collimating lens for mid-infrared quantum cascade lasers manufactured using wafer-level techniques
Proceedings Volume 8550, 85500Q (2012) https://doi.org/10.1117/12.981165
KEYWORDS: Silicon, Quantum cascade lasers, Semiconducting wafers, Mid-IR, Etching, Photoresist processing, Aspheric lenses, Manufacturing, Reactive ion etching, Micro optics
Proceedings Article | 28 August 2010 Paper
Performance improvement of AlN/GaN-based intersubband detectors thanks to quantum dot active regions
Daniel Hofstetter, Joab Di Francesco, Esther Baumann, Fabrizio Giorgetta, Prem Kandaswamy, Aparna Das, Sirona Valdueza-Felip, Eva Monroy
Proceedings Volume 7808, 78080A (2010) https://doi.org/10.1117/12.861569
KEYWORDS: Quantum wells, Sensors, Quantum dots, Absorption, Photodetectors, Frequency conversion, Aluminum nitride, Signal detection, Temperature metrology, Gallium nitride
Proceedings Article | 28 April 2010 Paper
Evaluation of the frequency stability of a VCSEL locked to a micro-fabricated Rubidium vapour cell
J. Di Francesco, F. Gruet, C. Schori, C. Affolderbach, R. Matthey, G. Mileti, Y. Salvadé, Y. Petremand, N. De Rooij
Proceedings Volume 7720, 77201T (2010) https://doi.org/10.1117/12.854147
KEYWORDS: Vertical cavity surface emitting lasers, Rubidium, Laser stabilization, Absorption, Glasses, Microfabrication, Semiconductor lasers, Silicon, Ions, Semiconducting wafers
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