Marek Vlk

Title of the thesis:

«Optical Waveguides for Infrared Spectroscopic Detection of Molecular Gases»

Popular scientific abstract:

Current trace gas detection instrumentation is bulky and expensive, which limits the applications. Optical waveguides aim at replacing free-space optics in order to reduce the size by realizing long pathlengths on a photonic chip. To achiece competetive sensitivites, the waveguide device needs to have a low loss to allow long interaction paths, and large light-analyte interaction per unit length. This thesis presents the analysis, fabrication methods, and characterisation of optical waveguides for on-chip gas detection by infrared tuneable diode laser absorption spectroscopy.

The thesis is published and available in Munin.

Supervisors:

• Associate Professor Jana Jágerská, Department of Physics and Technology, UiT (main supervisor)
• Professor Astrid Aksnes, Department of Electronic Systems, Norwegian University of Science and Technology.

Evaluation Committee:

• Professor Roel Baets, Department of Information Technology, Ghent University, Belgium (1. opponent)
• Professor Delphine Marris-Morini, Centre for Nanosciences and Nanotechnology (C2N), Université Paris-Saclay, France (2. opponent)
• Professor Olav Gaute Hellesø, Department Physics and Technology, UiT The Arctic University of Norway (internal member and leader of the committee)

Leader of the public defence:

The leader of the public defence is Professor Yngve Birkelund, Head of Department of Physics and Technology, Faculty of Science and Technology.

Opposition ex auditorio:

If you have any qiestions for the candidate during the public defence, please send an e-mail to yngve.birkelund@uit.no. He will announce the questions during the defence.

Trial lecture:

The trial lecture is held on Friday June 18th at 13.00 in the same auditorium. The title of the trial lecture is: «Optical gas sensing: today and tomorrow»

Streaming:

The defence and trial lecture will be streamed via Mediasite:

Audience:

UiT follows the national guidelines regarding infection control. A maximum of 20 people are allowed in the auditorium during the defence, as long as everybody keeps a distance of 1 meter at all times.