Guilherme Torelly

Guilherme Torelly
  • Doctor of Engineering
  • Professor (Assistant) at Pontifical Catholic University of Rio de Janeiro

About

20
Publications
1,870
Reads
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47
Citations
Introduction
Professor at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio) since 2023, working at the Semiconductor's Laboratory (LabSem) of the Center of Telecommunication Studies (CETUC).
Current institution
Pontifical Catholic University of Rio de Janeiro
Current position
  • Professor (Assistant)
Additional affiliations
September 2020 - present
Military Institute of Engineering
Position
  • PostDoc Position
Description
  • Researcher at the Biomaterials Laboratory, working on the development of new technology to aid health professionals working on the front line of the COVID-19 pandemic and future pandemics.
March 2018 - August 2019
Atomic Energy and Alternative Energies Commission
Position
  • PhD Student
Description
  • Optical semiconductor characterization using a streak-camera to measure the time-resolved photoluminescence in the ps time scale.
July 2012 - December 2012
Fives Cinetic Automation
Position
  • Software Engineer
Description
  • Development and debug of PLC software for controlling automotive industry production lines.
Education
March 2016 - January 2020
Pontifical Catholic University of Rio de Janeiro
Field of study
  • Electrical Engineering with emphasis in Nanotechnology
July 2014 - February 2016
Pontifical Catholic University of Rio de Janeiro
Field of study
  • Master of Science in Electrical Engineering with emphasis in Nanotechnology
March 2008 - June 2014
Pontifical Catholic University of Rio de Janeiro
Field of study
  • Electrical Engineering with emphasis in Electronics and Computers

Publications

Publications (20)
Article
Full-text available
Aim Insertion of dental implants causes bone deformation and induces residual bone compression stress, which can lead to implant failure if the bone loss threshold is exceeded. The current literature about bone stress is restricted to computer simulations and implant primary stability measurements after installation. This work measures the torque a...
Article
Full-text available
The quantum Bragg mirror detector (QBMD) is an innovative class of photodetectors designed to explore optical transitions from the ground state to bound states or to leaky electronic states in the continuum. In this study, we explore an asymmetric QBMD based on GaAs/AlGaAs with a leaky electronic state in the continuum. The use of GaAs/AlGaAs provi...
Article
Full-text available
Introduction The consensus among researchers is that early failure of dental implants is due to the lack of primary stability and compressive stress on the peri-implant bone that exceeds the physiological tolerance. Objective The objective of this work is to propose a new methodology to quantify bone stress during dental implant insertion and to c...
Article
Full-text available
We review recent studies of cavity switching induced by the optical injection of free carriers in micropillar cavities containing quantum dots. Using the quantum dots as a broadband internal light source and a streak camera as detector, we track the resonance frequencies for a large set of modes with picosecond time resolution. We report a record-f...
Article
Full-text available
We report on ultrafast all-optical switching experiments performed on pillar micro-cavities containing a collection of quantum dots (QDs). Using QDs as a broadband internal light source and a detection setup based on a streak camera, we track in parallel the frequencies of a large set (>10) of resonant modes of an isolated mi-cropillar, during the...
Preprint
Full-text available
We report on the generation of few-ps long spontaneous emission pulses by quantum dots (QDs) in a switched optical microcavity. We use a pulsed optical injection of free charge carriers to induce a large frequency shift of the fundamental mode of a GaAs/AlAs micropillar. We track in real time by time-resolved photoluminescence its fundamental mode...
Preprint
Full-text available
We report on the generation of few-ps long spontaneous emission pulses by quantum dots (QDs) in a switched optical microcavity. We use a pulsed optical injection of free charge carriers to induce a large frequency shift of the fundamental mode of a GaAs/AlAs micropillar. We track in real time by time-resolved photoluminescence its fundamental mode...
Article
Full-text available
InAs QDs embedded in an AlGaAs matrix have been produced by MOVPE with a partial capping and annealing technique to achieve controllable QD energy levels that could be useful for solar cell applications. The resulted spool-shaped QDs are around 5 nm in height and have a log-normal diameter distribution, which is observed by TEM to range from 5 to 1...
Article
Full-text available
An investigation of ultra-thin InAs layers deposited on GaAs is carried out combining theoretical calculations with results of high-resolution transmission electron microscopy, atomic force microscopy and photoluminescence. Five period InAs/GaAs epilayers were grown by metalorganic vapor phase epitaxy at a very low growth rate, with different InAs...
Conference Paper
Full-text available
The formation of self-assembled InAs quantum dots is investigated as the growth time increases from 3.6 to 12 seconds at a low growth rate. The morphological evolution from a rough surface at a short length scale to an extended 2D InAs flat area, and finally to the 3D InAs islands is followed using atomic force microscopy, photoluminescence and tra...
Article
Full-text available
Apresentamos técnicas de imageamento no infravermelho, que possibilitam ver no escuro e medir as temperaturas de um corpo ou de um ambiente. Alguns experimentos são propostos com o objetivo de auxiliar a visualização desse tipo de radiação, que está fora da faixa que conseguimos enxergar, e, por isso, dizemos invisível. O grande diferencial desses...

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