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Univ. of Porto SPIE Student Chapter, Porto (2026)

25/11/2021

** TOMORROW **
English version below!

SPIE Student Chapter da Universidade do Porto convida-vos a assistir a uma nova palestra já amanhã, dia 26 de Novembro, às 14:00, no anfiteatro FC1 003, no Departamento de Matemática. A palestrante convidada Dr. Sara Núñez-Sánchez, investigadora postdoc no centro de investigação Colloidal Chemistry Group, da Universidade de Vigo, vai apresentar o seu trabalho: "Bio-inspired polaritons: new strategies to confine, transport and process light at the nanoscale based on strong light-matter interactions".

The SPIE Student Chapter of the University of Porto invites you to participate in a new talk tomorrow, November 26th, at 2:00 PM, at room FC1 003, in the Department of Mathematics. This time, we will have the honour of hosting Dr. Sara Núñez-Sánchez, a postdoctoral researcher at the Colloidal Chemistry Group, from the University of Vigo, Spain, for the presentation of "Bio-inspired polaritons: new strategies to confine, transport and process light at the nanoscale based on strong light-matter interactions".

27/10/2021

English version below!
O SPIE Student Chapter da Universidade do Porto convida-vos a assistir a uma nova palestra já amanhã, dia 28 de Outubro, às 14:00, no anfiteatro FC1 029. Gionatan Buonanno e Domenico del Prete, da Universidade de Campânia Luigi Vanvitelli, Itália, apresentam o seu trabalho "Simple and highly sensitive plasmonic optical fiber probes for bio-chemical sensing".
The SPIE Student Chapter of the University of Porto invites you to participate in a new talk tomorrow, October 28th, at 2:00 PM, at room FC1 029. This time, we will have the honour of hosting Gionatan Buonanno e Domenico del Prete, students from University of Campania Luigi Vanvitelli, Italy, with a presentation entitled "Simple and highly sensitive plasmonic optical fiber probes for bio-chemical sensing".

Abstract: Several developed low-cost, highly sensitive, and simple to realize and to use plasmonic sensor configurations are here presented. In particular, the presented sensor configurations are based on polymer waveguides, such as polymer optical fibers and planar waveguides, that excite the plasmonic phenomena in nanofilms, continuous on nanostructured.

These plasmonic sensor chips are monitored using a simple experimental setup based on a white light source and spectrometer. Moreover, they can be combined with chemical and biological receptors in several application fields. In these cases, we can obtain the selectivity to the substances of interest via the use of specific Molecular Recognition Elements (MRE) in contact with the plasmonic sensing surfaces, such as those based on molecularly imprinted polymers (MIPs), antibodies, aptamers, nanoMIPs, etc. The substances that can be measured with the proposed approach are pollutants, viruses, bacteria, toxic metals, pesticides, or other molecules of interest to detect in aqueous solutions.

So, the advantages and disadvantages of each biochemical sensor system are presented in detail. More specifically, plasmonic extrinsic optical fiber sensor and intrinsic optical fiber sensor types will be reported in terms of plasmonic characteristics and application fields. For instance, these selective plasmonic optical fiber sensor systems (intrinsic or extrinsic schemes) can be used for "Smart Cities" applications, as in water quality monitoring, through an IoT (Internet of Thing) approach, or, alternatively, they can be used onboard of simple robots, based on an autonomous guide, to follow increasing concentrations of pollutants in rivers or sea to identify the point of interest (the source), etc.

21/10/2021

O SPIE Student Chapter da Universidade do Porto convida-vos a assistir a mais uma palestra da Student Talks. Hoje, 21 de Outubro, às 14h00, FC1 - 029 (Departamento de Matemática).
A Inês Carvalho irá apresentar o trabalho que desenvolveu durante o seu Mestrado.
The SPIE Student Chapter of the University of Porto invites you to participate once again in Student Talks. Today, 21st October, at 2pm, FC1 - 029 (Mathematic Department).
Inês Carvalho will present the work that was developed during their Masters’.

Abstract:
Over the last years, the search for reliable biosensing devices has been growing, with a focus on more efficient treatments and more timely prevention of diseases. Optical tweezers, as one of the emergent tools for modern biotechnology, has proven the ability to trap and manipulate individual particles and cells in a non-invasive way, playing a big role in the classification of specimens through different methods like backscattered radiation analysis.

Conventional optical tweezers setup with a quadrant photodetector for forward-scattered radiation analysis is used for manipulating micron-sized particles and cells. A nouvelle preprocessing procedure based on Fourier transform and principal component analysis is presented, aiming for the extraction of relevant class classification features.

Machine learning classification algorithms can achieve accuracies of 90% in the differentiation of particles and cells. This kind of approach is also able to discriminate between distinct micron-sized particles, classify different cells and even identify nanoparticles.

In the future, optical tweezers will be an important technology in biomedical applications due to their versatility and real-time capabilities which have evergrowing importance in today’s world.

09/12/2020

O SPIE Student Chapter da Universidade do Porto convida-vos a assistir a mais uma palestra da Student Talks. Sexta-feira, dia 11 de dezembro, às 11:30, na plataforma online Zoom.
A Diana Capela irá apresentar o trabalho que desenvolveu durante o seu Mestrado.

The SPIE Student Chapter of the University of Porto invites you to participate once again in Student Talks. Friday, December 11th, at 11:30 AM, online at Zoom.
Diana Capela will present the work that they developed during their Masters’.

Abstract:
Laser Induced Breakdown Spectroscopy is an analytical technique that has been raising interest in several scientific areas. The ability to detect lighter elements of the periodic table, such as Lithium, its portability, and fast results are some of the biggest advantages of LIBS. This allows it to be used in the mining industry, in order to screen the prospecting zones to determine the feasibility of the ore extraction and, consequently, reducing the ecological footprint.

With these goals in mind the performance of a LIBS prototype was assessed for geological samples, determining the system’s precision to be about 20%. An algorithm for element identification in geological spectra was developed, being able to determine ~85% of the complex sample’s composition. Three case studies were analyzed, all of them related with Li detection: a qualitative analysis of a hydrothermal vein sample; differentiation between two minerals with same elemental composition, (Spodumene and Petalite); and a drill hole three level semi-quantification. All the approaches showed promising results.

Link de Inscrição/Registration Link: https://videoconf-colibri.zoom.us/meeting/register/tZcpcO6hqD4uH9za0XvPTvov0vxUTq5enJc3

24/11/2020

The SPIE Student Chapter of the University of Porto invites you to participate in an online talk on Friday, November 27th, at 2:00 pm. This time, we will be hosting Dr. Ariel Guerreiro, a professor at the Department of Physics and Astronomy of the Faculty of Sciences of the University of Porto, and a senior researcher at the Center for Applied Photonics of INESC TEC. The presentation is entitled "Quantum engineering and technologies: from simulation to sensing".

Abstract: This presentation aims to provide a birds-eye view of a novel field in Science and Engineering dedicated to harnessing the quantum phenomenology discovered throughout the 20th century to develop new and more efficient technologies and applications.

At the heart of this endeavor is the unparalleled capacity of the quantum state to store and process large quantities of information faster and with lower energy consumption. This has been recognized by the scientific community, many countries and, the industry, resulting in a race to develop quantum computing, communications, and sensing. However, this effort is not without tremendous challenges, from controlling the nefarious effects of noise and the difficulties in measuring, to the scaling-up of the early prototypes to real-world applications.

For Physicists and Physical Engineers, this opens new work opportunities. Indeed, the development of abstract mathematical models focused on quantum software that began in the late 20th century has now to be catch-on by hardware, and the chasm between quantum information models and their physical implementation must be bridged. This demands in-depth knowledge of Quantum Physics, from Solid State and Material Sciences to Optics and Nanotechnologies, and even Quantum Field Theory and Computational Physics.

Preparing the future workforce in Quantum Engineering and technologies is therefore a mission engaging physics departments worldwide, and the Physics and Astronomy Department of Porto and associated research centers are no exception. This presentation will address the research carried out at the Center of Applied Photonics of INESC-TEC at the Physics and Astronomy Department, from quantum sensing to quantum simulation using light. In the words of Richard Feynman, “there is plenty of room at the bottom”, and I believe that the 21st century will cash in the quantum aspects of this hidden dimension.

Registration Link: https://forms.gle/vJMct1ijUZqq5KBa8

03/10/2020

The SPIE Student Chapter of the University of Porto invites you to participate in an online talk on Thursday, October 8th, at 1:30 pm. This time, we will be hosting André Gomes, a PhD student at FCUP, INESC TEC, and Leibniz Institute of Photonic Technology. The presentation is entitled "Challenging the limits of sensitivity in fiber interferometers: An overview of the optical Vernier effect".

Abstract: Advanced fiber sensing interferometers keep being explored and developed to meet state-of-the-art demands, one of which is the increased sensitivity. The optical version of the Vernier effect applied to optical fiber sensing interferometers has demonstrated a huge potential to solve these needs, with the advantage of being compatible with almost any kind of interferometer.
In this presentation I will focus on providing an overview on the optical Vernier effect from a fiber sensing point of view. When applied to fiber interferometers, the optical Vernier effect can increase their sensitivity typically by one order of magnitude. A recent concept of introducing harmonics to the optical Vernier effect will also be presented, where the enhancement can be further improved proportionally to the harmonic order. Lastly, I will show some recent results of employing such effect for different sensing applications

Link for registration: https://forms.gle/1R72GN3L2PDJYkh28

07/01/2020

English version below!

O SPIE Student Chapter da Universidade do Porto convida-vos a assistir a uma nova palestra na quinta-feira, dia 9 de Janeiro, às 13:30, no anfiteatro FC3 -117. Desta vez iremos receber a Dra. Sofia Pessanha, investigadora post-doc no LIBPhys-UNL e professora convidada no Departamento de Física da Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, com uma apresentação intitulada "Raman spectroscopy applications in Dentistry research: challenges and perspectives".

The SPIE Student Chapter of the University of Porto invites you to participate in a new talk on Thursday, January 9th, at 1:30 PM, at room FC3 -117. This time, we will have the honour of hosting Dr. Sofia Pessanha, post-doc fellow at LIBPhys-UNL and an invited professor in the Physics Department of the Faculty of Sciences and Technology of the New University of Lisbon, with a presentation entitled "Raman spectroscopy applications in Dentistry research: challenges and perspectives".

Abstract: In this work, the advantages of Raman spectroscopy in the analysis of dental tissues will be discussed and several applications will be presented regarding the evaluation of the phosphate profile before and after treatment with bleaching products, gustatory stimulants of salivary secretion and acidic beverages, separated studies will be presented, concerning the use of the different products. Raman spectroscopy can also provide valuable information regarding the interaction of the materials used for restoration and dentin tissue –composite fillings. In this work we used Raman spectroscopy to evaluate the performance of adhesive systems created for the use with composite fillings. Polymeric composite fillings are not capable to self-adhere to dentin so an adhesive is required to infiltrate the tooth’s structure and copolymerize with the restorative material, creating a hybrid layer. The degree of conversion of monomers as well as the depth of impregnation of the adhesive throughout the hybrid layer was compared for two different adhesive systems and for sound and affected dentin. Furthermore, the use of Raman spectroscopy as tool for the early caries diagnosis will be demonstrated.

Short Biography: Sofia Pessanha obtained her PhD in Physics by the Faculty of Sciences of the University of Lisbon (FCUL) in December 2013, with the theme “Non-destructive characterization of artworks in paper support using spectroscopic techniques”, supervised by Professor Maria Luisa Carvalho. She is now a post-doc fellow at LIBPhys-UNL and an invited professor in the Physics Department of the Faculty of Sciences and Technology of the New University of Lisbon (FCT-UNL) in charge of supervising master students projects in Physics Engineering and Biomedical Engineering.
Was a collaborator of the former Atomic Physics Centre of the University of Lisbon (now LIBPhys-UNL) since 2005 and works with X-Ray Fluorescence and Raman spectroscopy in material characterization of biological samples, environmental studies and toxicology and artworks. Her most recent fields of interest is the application of spectroscopic techniques to Dentistry research. Up until now, has over 70 publications in peer reviewed scientific journals, all related to applied physics, and has participated with both oral and poster presentations in over 40 international conferences.

29/11/2019

English version below!

O SPIE Student Chapter da Universidade do Porto convida-vos a assistir a uma nova palestra na terça-feira, dia 3 de Dezembro, às 13:45, no anfiteatro FC3 015. Desta vez teremos a honra de receber o Dr. Nuno C. Santos, professor auxiliar do Departamento de Física e Astronomia da Faculdade de Ciências da Universidade do Porto, com uma apresentação intitulada de "Top level requirements for astronomical instrumentation: the astronomer's perspective".

The SPIE Student Chapter of the University of Porto invites you to participate in a new talk on Tuesday, December 3rd, at 1:45 PM, at room FC3 015. This time, we will have the honour of hosting Dr. Nuno C. Santos, assistant professor of the Physics and Astronomy Department of the Faculty of Sciences of the University of Porto, with a presentation entitled "Top level requirements for astronomical instrumentation: the astronomer's perspective".

Abstract: The development of state-of-the-art astronomical instrumentation, strongly motivated by curiosity driven research, is driving the development of new technologies. In this context, one of the hottest fields of present day astronomy is the search and characterization of planets orbiting other stars. With the goal of allowing for the detection the minute signals of other Earths orbiting other Suns, several challenges have to be addressed, both scientific and technological in nature. In this talk I will present two examples of state-of-the-art atronomical instruments used in this field (ESPRESSO/ESO, and CHEOPS/ESA). I will in particular focus on the scientific requirements that were used to define the final instrument design and construction.

Short Biography: Nuno C. Santos is assistant professor at the Departamento de Física e Astronomia/Faculdade de Ciências da Universidade do Porto. He was awarded a first degree in Physics at the Universidade de Lisboa (Faculdade de Ciências) in 1996, and a Master degree in Astronomy & Astrophysics at the same university. In 2002 he ended his PhD at the University of Geneva (Observatoire de Genève), Switzerland, under the supervision of Prof. Michel Mayor. Following a first pos-doc in Geneva, he then integrated the teams in CAAUL (2003) and CAUP (2007), now merged to form IA (2015).
Current main research interests focus on Planetary System's science, leading in IA the thematic line on Towards the detection and characterization of other Earths. Author of more than 300 refereed papers in high impact journals, Nuno C. Santos is expert in exoplanet research, having led several key results in planet search projects using radial velocity and transit methods, on the study of the star planet connection, and on the study of exoplanet atmospheres. Examples include the detection of the first possible rocky planet orbiting a solar type star (2004), and pioneer studies about the effects of stellar chemical abundances on planet frequency and composition. For these latter, in 2010 he was offered, together with Prof. Michel Mayor and Prof. Garik Israelian, the 1st Viktor Ambartsumian International prize.
In the context of exoplanet research he is involved in several key instrumentation projects, including: Co-PI of the ESPRESSO (ESO) and Co-I of the NIRPS spectrographs, board member of the CHEOPS and PLATO missions (ESA), and member of the steering committee of the HIRES@ELT instrument.

13/11/2019

O SPIE Student Chapter da Universidade do Porto convida-vos a assistir a uma nova palestra da Student Talks. Sexta-feira, dia 15 de Novembro, às 13:30, na sala FC3 0.26, Sandra Rodrigues e Hugo Nóbrega irão apresentar o trabalho que desenvolveram durante o seu Mestrado.
The SPIE Student Chapter of the University of Porto invites you to participate in a new talk of the Student Talks. Friday, November 15th, at 1:30 PM, at room FC3 0.26, Sandra Rodrigues and Hugo Nóbrega will present the work that they developed during their Masters’.

09/10/2019

O SPIE Student Chapter da Universidade do Porto convida-vos a assistir à primeira palestra da Student Talks. Sexta-feira, dia 11 de outubro, às 13:30, na sala FC2 -103, Filipe Marques e Paulo Robalinho irão apresentar o trabalho que desenvolveram durante o seu Mestrado.
The SPIE Student Chapter of the University of Porto invites you to participate in the first Student Talks. Friday, October 11th, at 1:30 PM, at room FC2 -103, Filipe Marques and Paulo Robalinho will present the work that they developed during their Masters’.

Univ. of Porto SPIE Student Chapter

25/11/2021

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