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Asticio Vargas visits TecnOPTO Lab


Asticio VargasIn June 2016 we received the visit of our friend Dr. Asticio Vargas, from the Department of Physical Sciences, at Universidad de La Frontera, in Temuco, Chile.

Asticio stayed for three weeks in our lab, where we have been working hard on different projects related to Solc filters and polarization.

The picture shows from right to left Asticio, with Ignacio, and two of the current PhD students, Abdelghafor Messaddi, from Algeria, and  Aaron Cofré, also from Chile.


Categories: Collaborators, International Tags:

Martes, 28 de junio de 2016 Sin comentarios

New paper in Optics Letters with q-plates encoded onto a SLM to produce integer and fractional vector beams


ThumbnailWe published a new paper in Optics Letters entitled Generation of integer and fractional vector beams with q-plates encoded onto a spatial light modulator. The paper appeared published in the sixth issue of OL in 2016.

In this paper we generated programmable vector beams with arbitrary -plates encoded using a spatial light modulator system. Consequently, we have been able to analyze new and exotic -plate designs without the difficulty of fabricating individual plates. For instance, we showed experimental results for positive and negative integer and new fractional vector beam values.

For instance, the picture shows a fractional vector beam where the polarization changes linearly in three sectors along the polar coordinate in the plane traversal to the beam.

This work has been done during the stay of María M. Sanchez-López and Ignacio Moreno at SDSU during Summer 2015.


Martes, 22 de marzo de 2016 Sin comentarios

Ignacio Moreno visits the Department of Physics at SDSU


With Jeff and NobuyukiIgnacio Moreno made a short one week visit to our friends at San Diego State University (SDSU) in February 2016. During this short visit he could discuss the collaboration continuation with Prof. Jeffrey Davis and his team at the Department of Physics.

We also had the opportunity to have a visit from Prof. Nobuyuki Hashimoto, and Ayano Tanabe, from the Development Division of Citizen Holdings Co., Ltd, in Saitama, Japan. Prof. Hashimoto provided us with a prototype q-plate liquid crystal device that we have been using on our last common works on the generation and manipulation of vector beams. The picture shows us, Jeff, Nobuyuki and Ignacio, at the SDSU campus.


Categories: Collaborators, International Tags:

Lunes, 21 de marzo de 2016 Sin comentarios

Prof. Juan Campos visits TecnOpto Lab and imparts a seminar on polarimetry


Juan CamposOur friend Prof. Juan Campos, from the Department of Physics at Universitat Autònoma de Barcelona (UAB) visited us on March 3rd and 4rth, 2016. Juan is the leader researcher in the national research projects we develop in collaboration.

Juan came to Elche to participate in the 3rd edition of the PhD Workshop of TECNIT – the Doctorate Program in Industrial & Telecommunications of UMH. He participated at the workshop by giving a talk entitled ADVANCES IN OPTICAL POLARIMETRY: DEVICES AND APPLICATIONS. This talk can be viewed at the above link.


Categories: Collaborators, Conferences, Education Tags:

Sábado, 19 de marzo de 2016 Sin comentarios

New paper in Optics Express – Diffraction gratings generating orders with selective states of polarization


Optics ExpressWe published a new paper in Optics Express. The paper, entitled “Diffraction gratings generating orders with selective states of polarization” appears in the second issue of the journal in 2016.

In this paper we propose specially designed double anisotropic polarization diffraction gratings capable of producing a selective number of diffraction orders and with selective different states of polarization. Different polarization diffraction gratings are demonstrated, including linear polarization with horizontal, vertical and ± 45° orientations, and circular R and L polarization outputs. When illuminated with an arbitrary state of polarization, the system acts as a complete polarimeter where the intensities of the diffraction orders allow measurement of the Stokes parameters with a single shot. Experimental proof-of-concept is presented using a parallel-aligned liquid crystal display operating in a double pass architecture.

This work has been done in collaboration with our friends at San Diego State University.


Miércoles, 2 de marzo de 2016 Sin comentarios

María M. Sánchez-López and Ignacio Moreno stay three months at SDSU


Estancia en San DiegoMaría M. Sánchez-López and Ignacio Moreno stayed three months at the Electro-Optics Lab of San Diego State University (SDSU), in the period July – September 2015.

During their stay, thay worked with Profs. Jeffrey A. Davis and Don M. Cottrell, as well as some of the students, like Katherine Badham and Sam Delaney.

The main focus of research has been devoted to the study of q-plate devices.

The picture shows María with Jeff, Katie and Sam.


Categories: Collaborators, International Tags:

Miércoles, 13 de enero de 2016 Sin comentarios

Ignacio Moreno becomes Fulbright recipient to stay at San Diego State University


FulbrightIgnacio Moreno has been awarded with a grant to visit the Department of Physics of San Diego State University for three months. This grant is financed by the from the Ministry of Education, Culture and Sports of Spain, in the program for mobility stays for professor and researchers at foreign centers.

This stay will be performed in the period between July and September 2015.

In addition, this grant has been selected as one of the 30 recipients for 2015 of the Fulbright grant by the Fulbright commission.


Categories: Collaborators, International Tags:

Sábado, 30 de mayo de 2015 Sin comentarios

Ignacio Moreno stays six weeks at ITO-Institut für Technische Optik – Universität Stuttgart


TizianiIgnacio Moreno stayed at ITO – the Institut für Technische Optik from the Universität Stuttgart in the period from 2014 November 1st until December 15th.

During this period he has been able to interact with Prof. Dr. Wolfgang Osten, ITO director, and other ITO researchers, and learn some of the new advances in optics developed by this prestigious center.

On November 12th, Ignacio gave a seminar entitled “Optics with liquid crystal SLMs at UMH-Elche: Programmable diffraction, polarization and spectral control”, where he introduced the research activities that we develop at TECNOPTO.

The picture shows Ignacio with Prof. Dr. Hans Tiziani, former ITO director, during the Christmas dinner celebration.


Categories: Collaborators, International Tags:

Sábado, 14 de marzo de 2015 Sin comentarios

Ignacio Moreno visits the Department of Physics at SDSU


IMG_3316 SmallIgnacio Moreno visited the Department of Physics of San Diego State University – SDSU- from September 20th to 28th, to continue with the common projects with our friends Prof. Jeffrey A. Davis and Prof. Don. M. Cottrell.

As always, the visit has been extremely valuable and fruitful discussions and new ideas were opened.


Categories: Collaborators, International Tags:

Viernes, 7 de noviembre de 2014 Sin comentarios

María del Mar Sánchez and Ignacio Moreno visit the Department of Physics at UAB


Grupo UABMaría del Mar Sánchez and Ignacio Moreno stayed for two weeks at the the Optics Group of the Department of Physics, at Autonomous University of Barcelona (UAB), at the second half of July 2014.

The picture show us with the complete team. For right to left, Juan Campos, Andrés Márquez (from University of Alicante), Ignacio Moreno, María del Mar Sánchez, Juan Carlos Escalera, María Yzuel, Xuejie Zheng, Alba Peinado, Angel Lizana, Claudio Ramírez and Irene Estévez.

 


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Miércoles, 15 de octubre de 2014 Sin comentarios