Author: loiro

Analytic interpretation of Mueller matrices based on a continuous medium description

For some reason I cannot fully understand, certain types of serial decompositions of Mueller matrices became quite popular among experimentalists. I am talking about the polar decomposition and the Lu-Chipman decompositions. These matrix decompositions allow to decompose a matrix in a series of a retarder, a diattenuator and, eventually, also a depolarizer. Of course matrix…

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Setember update

Not many updates lately! I hope this semester I will manage to  keep the website more up-to-date.  I also want to add a section with some  new scientific content in the form of a tutorial, let’s see if I find the time. For the moment today I have updated the publication list in the lazy…

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150XT Mueller Polarimeter

 Hinds Intruments  is selling the new 150XT Mueller Polarimeter. This instrument was developed in collaboration with New York University using the 4 Photoelastic Modulator (PEM) technology we pioneered. To my knowledge this is the first commercial full Mueller matrix polarimeter with research-grade specifications ever made available . The key element here is the sensitivity.  The instrument was…

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New position at Universitat de Barcelona

After more than two years in New York University this month I have started to work again in Universitat de Barcelona.  This was possible because some time ago I got a Beatriu de Pinos Fellowship. These are grants to encourage the recruitment of research personnel in the Catalan public sector, be they in universities, research centers or hospital foundations,…

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Reciprocity and Mueller matrices

Recently I have been working on how Mueller matrices handle reciprocal and nonreciprocal optical effects. Mueller matrices are truly informativative about reciprocity, but one needs to know how the information is “stored”.  A series of two papers are going to be published in Optics Letters about the topic.  For the moment they can be accessed…

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New year

First message of 2013!  Happy New Year to any eventual visitor. Some quick updates to start the year: I have updated the Publications section using an embedded PDF file. I hope this way it is easier to keep it updated! I have recently known that my Phd Thesis [available here] has won the 2nd prize…

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New paper in Applied Optics

Last year I spent a lot of my time to build the instrument reported in this paper. It is one of  the bests polarimeters/ellipsometers to date, because it measures simultaneously the 16 elements of a Mueller matrix without any moving part. Oriol Arteaga, John Freudenthal, Baoliang Wang, and Bart Kahr, “Mueller matrix polarimetry with four photoelastic modulators:…

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New paper in Chem. Eur. J.

A new paper has been published. A. Sorrenti, Z. El-Hachemi, O. Arteaga, A. Canillas, J. Crusats, J. M. Ribó.  Kinetic control of the supramolecular chirality of Porphyrin J-Aggregates, Chem. Eur. J (2012) You can view this paper here.