Dr. Alvaro Casas Bedoya Profile

Dr. Alvaro Casas Bedoya

Associate Director Integrated Photonics Sensing

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Alvaro Casas Bedoya is currently a postdoctoral research fellow, the hybrid Integration deputy project leader and the OSA/SPIE student chapter advisor in CUDOS. He received his PhD in physics from the University of Sydney in 2013 where he investigated photonic crystals and optofluidics. He received a double MSc degree in Photonics (through the Erasmus Mundus program) from St Andrews & Heriot-Watt universities in Scotland (2008) and Gent & VUB Universities in Belgium (2009) (Distinction level). His MSc research was based in Silicon-On-Insulator and photonic sensing architectures. He obtained a BSc. (Physics) (Hons) from Universidad del Valle in Colombia (2005) where he built a high power CW-C02 laser which was used for material processing

Dr Casas Bedoya current research interests are based on design, simulation and fabrication of integrated optical circuits for stimulated Brillouin scattering, optomechanics, and sensing.

Proceedings Article | 22 December 2015 Paper

Tunable microwave notch filter created by stimulated Brillouin scattering in a silicon chip

A. Casas-Bedoya, Blair Morrison, Mattia Pagani, David Marpaung, Benjamin Eggleton

Proceedings Volume 9668, 966819 (2015) https://doi.org/10.1117/12.2202488

KEYWORDS: Silicon, Signal processing, Scattering, Linear filtering, Microwave radiation, Nonlinear optics, Integrated optics, RF photonics, Silicon photonics, Signal attenuation, Nanowires, Filtering (signal processing), Microwave photonics, Modulation, Nonlinear filtering

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Proceedings Article | 25 April 2012 Paper

Photonic crystal waveguide created by selective infiltration

A. Casas Bedoya, P. Domachuk, C. Grillet, C. Monat, E. Mägi, E. Li, B. Eggleton

Proceedings Volume 8425, 84250Z (2012) https://doi.org/10.1117/12.922140

KEYWORDS: Liquids, Waveguides, Photonic crystals, Refractive index, Silicon, Waveguide modes, Microfluidics, Dispersion, Wave propagation, Nanolithography

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Proceedings Article | 12 February 2011 Paper

Optofluidic dispersion engineering of photonic crystal waveguides

A. Casas Bedoya, P. Domachuk, C. Monat, C. Grillet, S. Tomljenovic-Hanic, E. Mägi, B. Eggleton

Proceedings Volume 7949, 794904 (2011) https://doi.org/10.1117/12.876127

KEYWORDS: Dispersion, Waveguides, Liquids, Photonic crystals, Refractive index, Microfluidics, Slow light, Structural engineering, Numerical modeling, Solids

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Proceedings Article | 20 May 2009 Paper

Biodiesel sensing using silicon-on-insulator technologies

Alvaro Casas Bedoya, Meng Ling, Joost Brouckaert, Nebiyu Yebo, Dries Van Thourhout, Roel Baets

Proceedings Volume 7366, 73660D (2009) https://doi.org/10.1117/12.821508

KEYWORDS: Waveguides, Biodiesel, Silicon, Absorption, Spectroscopy, Biosensing, Sensors, Wave propagation, Biofuels, Optical design

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Proceedings Article | 21 March 2007 Paper

Effect of CO2 laser irradiation on the performances of sol-gel-derived Er3+-activated SiO2-ZrO2 and SiO2–HfO2 planar waveguides

C. Goyes, M. Ferrari, C. Armellini, A. Chiasera, Y. Jestin, G. Righini, A. Casas, C. Meacock, E. Solarte

Proceedings Volume 6458, 64580D (2007) https://doi.org/10.1117/12.700640

KEYWORDS: Gas lasers, Annealing, Carbon monoxide, Waveguides, Erbium, Planar waveguides, Pulsed laser operation, Laser irradiation, Signal attenuation, Refractive index

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Proceedings Article | 9 September 2006 Paper

CO2 (10.6 μm) laser for high tech ceramic materials production

A. Casas Bedoya, H. Garcia Mejia, C. Goyes, E. Solarte

Proceedings Volume 6290, 62900Z (2006) https://doi.org/10.1117/12.679163

KEYWORDS: Silicon carbide, Gas lasers, Ceramics, Transmission electron microscopy, Carbon dioxide lasers, Annealing, Carbon monoxide, Quartz, Laser irradiation, FT-IR spectroscopy

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Proceedings Article | 23 January 2006 Paper

Preparation and characterization of ceramic thin films, structures, and nanocrystals using CO₂ laser annealing treatment

C. Goyes, A. Casas, E. Solarte, F. Sequeda, A. Devia

Proceedings Volume 6029, 60290D (2006) https://doi.org/10.1117/12.667674

KEYWORDS: Silicon carbide, Annealing, Gas lasers, Quartz, Thin films, Carbon monoxide, Atomic force microscopy, Infrared spectroscopy, FT-IR spectroscopy, Ceramics

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Showing 5 of 7 publications

Conference Committee Involvement (1)

SPIE Micro+Nano Materials, Devices, and Systems

7 December 2015 | Sydney, New South Wales, Australia

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