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17th Scientific Meeting

Next Wednesday we will have the 17th Scientific Meeting. Our invited speaker this time is Professor Manuel Marques, from the Faculty of Sciences! The talk is entitled "Limits of spectral resolution in optical measurements". Don't miss it! Be where the action is!
When Jul 02, 2014
from 02:30 to 03:30
Where room -117, Physics Department, FCUP
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Nowadays a growing number of scientists relies on optical spectral measurements for their research. The market is full of new plug-and-play equipment for spectral analysis that take the fuss out of the measurements. As with other instruments (computers, lasers, etc.) the researcher doesn´t need any longer to work with someone with a post-graduate formation on the technology to be able to do excellent research. But, as in every instrument, there are limitations on the instrument use that affect its precision and resolution.

Currently there is in the market a large variety of equipment for spectral measurements. They range from the huge long focal length double pass monochromators to the small pocket size USB connected array spectrometers. The different configurations have different sensitivities on the light input system, light intensity, coherence, polarization, etc.

In this talk we will discuss a few of the limitations in spectral measurements that can be found in experimental setups.

 

Short CV

Manuel J.B. Marques received a degree in physics from Porto University in 1983, and a PhD degree in physics from the same university in 1991. His thesis work was on nonlinear coupling to optical waveguides. From 1993 to 2001 he was a member of Centro de Física do Porto, where he worked on fiber lasers and integrated optics. He joined INESC Porto, Portugal, in January 2002, where he has worked on fiber lasers and sensors. He has been an assistant professor in the Physics Department of Porto University since 1991. Dr. Marques is a member of the Portuguese Physics Society.


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