We have published a new paper in Optical Engineering entitled «Experimental implementation of a virtual optical beam propagator system based on a Fresnel diffraction algorithm«.
Here we present an optical system for a virtual beam propagator evaluation without any moving element. It is based on the encoding of the Fresnel diffraction through a fast transform algorithm, and the use of a spatial light modulator to display the porpagated pattern. The paper discusses the limits imposed by the pixelated structure of the SLM.
This work a been done in collaboration with our friends Jeffrey Davis, Don Cottrell and the students at SDSU.
The paper can be downloaded at: link
We published a new paper in Optica Pura y Aplicada entitled «Optical invisibility by refraction index matching… but revealed by fluorescence«, where we show a set of simple experiments to demonstrate optical invisibility by refractive index matching between sunflower oil and pyrex glass. However, the presence of the cloaked object can be revealed by using the fluorescence properties of the sunflower oil.
This paper was published in a special section of OPA dedicated to outreach experiments in Optics, related to the 2015 – International Year of Light.
The paper can be downloaded at: link
MarÃa del Mar Sánchez López has been recognized as Senior Member of SPIE – The International Society for Optics and Photonics. She received this recognition during the SPIE Optics & Photonics meeting held in San Diego during August 2015, 9th to 13th.
The complete list of new SPIE Senior members can be viewed in: link
SPIE Senior Members are Members of distinction who will be honored for their professional experience, their active involvement with the optics community and SPIE, and/or significant performance that sets them apart from their peers.
MarÃa M. Sánchez-López and Ignacio Moreno attend the meeting SPIE Optics & Photonics held in San Diego during August 2015, 9th to 13th.
The oral communication entitled «Spectral characterization and tuning with liquid-crystal retarders» was presented within the session Optics and Photonics for Information Processing IX. The proceedings of this presentation can be found at Proc. SPIE 9598, 95980E (September 9, 2015); doi:10.1117/12.2188629 link
domingo, 27 de septiembre de 2015
i.moreno
Pascuala GarcÃa has been recognized as Senior Member of OSA – The Optical Society of America.
The 2015 complete listing of new OSA Senior members can be viewed in: link
OSA Senior Members are well-established individuals with at least 10 years of significant professional experience and with a designation that recognizes their experience and professional accomplishments or service within their field that sets them apart from their peers.
martes, 1 de septiembre de 2015
i.moreno
We published a new paper in Optics Letters entitled «Azimuthal multiple-beam interference effects with combinations of vortex beams» . In this work we show a technique to create a series of vortex beams with positive and negative topological charges and develop a geometry where they interfere creating azimuthal multiple beam interference effects.
This work has been done in collaboration with our friens at San Diego State University.
The paper achieved impact since it has been on the top10 most downloaded papers in Optics Letters in May 2015.
MarÃa del Mar Sánchez and Ignacio Moreno completed a series of seminars about Optics & Photonics at the ‘AUNEX – Aulas de la Experiencia’, organized by the University Miguel Hernandez, and sponsored by the Obra Social La Caixa.
These seminars have been included in the activities related to the IYL2015, the International Year of Light event at the UMH. And they have been imparted at the seven locations of the university in the province of Alicante: Torrevieja, El Campello, Ibi, Elche, Altea, Benidom, and Orihuela. The picture shows us with the group in Orihuela.
On 2015 May 21st, Maria del Mar Sánchez-López gave the seminar Optics & Photonics, the science of light and light based technology at the Department of Physics of the University of Salerno (Italy).
This seminar was part of the academic event for the Premio «Eduardo R. Caianiello», awarded for secondary school students by the International Institute for Advanced Studies (Istituto Internazionale per Gli Alti Studi Scientifici).
Announcement:Â LocandinaPremio-AI_premiazione
Ignacio 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.
We published a new paper in Optics Communications entitled «Simple spectral technique to identify the ordinary and extraordinary axes of a liquid crystal retarder«.
In this work we analyze the effective retardance changes that happens when a retarder is tilted and use this effect to easily identify the ordinary and extraordinary axes of a liquid-crystal retarder by means of a spectrometer.
This work has been done in collaboration with our colleagues Juan Campos, from UAB, and Asticio Vargas and Aaron Cofré, from UFRO (Chile).
We have published a new paper in Optical Engineering entitled «Experimental implementation of a virtual optical beam propagator system based on a Fresnel diffraction algorithm«.
