Activity Log
August 2026: The THz Insight Workshop will be organized and co-chaired by our group at USP, in collaboration with CNPEM and UNICAMP.
17-21 May 2026: Felix will be invited speaker at the 2026 Autumn Meeting of the Brazilian Physical Society in Cuiabá, MT.
15-17 December 2025: Felix will give an invited talk at the VII “Rio de la Plata” Workshop on Optics and Photonics in Punta del Este, Uruguay.
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25 November 2025: Felix will present an online seminar for the Multiferroics/Thermoelectrics group of the INCT Advanced Quantum Materials.
18-19 November 2025: Felix will deliver an invited talk at II Workshop of the PGF-UNIFEI.
11 November 2025: Welcome Adriana Blandón, PhD student from the Universidad Nacional de Colombia, for an experimental intership in our group.
10 November 2025: Felix is editing a Collection for Discover Quantum Science: "Light–Matter Interactions in Quantum Materials: Coherence, Control, and Application Frontiers".
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30 October 2025: Our paper is published online (open access) in Communications Physics. Read here the Press Release (in Portuguese).
20-21 October 2025: Our undergraduate students - Fernanda, Guilherme and Pedro Luka - will present their research at the SIICUSP.
20 October 2025: Felix will give an invited talk (Seminário do Grupo de Pesquisa em Fotônica) at Mackenzie Presbyterian University.
16-17 October 2025: External work at ITA.
15 October 2025: Read our new paper here and access here the Press Release (in Portuguese).
07 October 2025: Our paper on windowing application for THz-TDS in thin films (preprint here) was accepted for publication in the Journal of Infrared, Millimeter, and Terahertz Waves.
03 October 2025: We finished the instalation of our Oxford Instruments SpectromagPT system. See photos in the Techniques tab.
01 October 2025: Welcome Raiane and Mauricio, the newest members of our group, supported by the USP-CNPEM call.
28 September - 02 October 2025: Felix, Laura and Fernanda attended the B-MRS annual meeting in Salvador.
10 September 2025: We received the visit of Prof. Eduardo Granado from UNICAMP in our lab.
04 September 2025: Read our new paper on the fabrication of 3D-printed wave plates for terahertz waves (In Review).
03 September 2025: Our paper "Metallicity-driven polar transitions in topological epilayers" was accepted for publication in Communications Physics. Congratulations !
01 September 2025: Congratulations Laura and Guilherme for the new PIBIC and PIBITI scholarships.
01 September 2025: The Jornal da USP published an article about our outreach project as part of the science journalism initiative Comunicar Ciência.
01 September 2025: External work at UFSCar for the graduate program in physics.
29 August 2025: Read the press release with the results of the USP-CNPEM call at the Jornal da USP.
28-29 August 2025: Our research activities and infrastructure were presented at the inaugural INCT workshop.
27 August 2025: Unfortunately, our proposal to study memristors using THz-TDS was recommended but not approved in CNPq Universal Call.
22 August 2025: IFUSP published a remark on our science journalism project.
18 August 2025: Congratulations to the students selected in this year’s PUB-USP Call — Caroline (Vertente-Ensino) and Fernanda (Vertente-Pesquisa).
17-22 August 2025: Felix gave an oral presentation at the 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) in Finland.
15 August 2025: Congratulations Sofia for the granted FAPESP scholarship !
13 August 2025: Felix was approved to progress to level 5.3, higher horizontal level of the Associated Professor category (Livre Docente).
11 August 2025: Installation has begun of our new cryostat with integrated magnet and THz windows from Oxford Instruments.
08 August 2025: Our project, in collaboration with Dr. Raul O. Freitas from LNLS, was approved in the USP-CNPEM call.
06 August 2025: Read our new paper with a performance comparison of 3D-printed terahertz waveplates in arXiv.
04 August 2025: Welcome Sofia to our group for the Master's Program in Physics!
01 August 2025: We received two new PUB-USP scholarships for undergraduate students, one for teaching (Ensino) and one for research (Pesquisa). Applications are open.
27 July - 01 August 2025: We presented a poster at the joint 26th EP2DS and 22nd MSS Conferences in St. Louis - USA.
31 July 2025: Our paper "Ciência de terahertz: instrumentação e pesquisa na USP" was published in the Magazine of the Brazilian Society for Optics and Photonics (SBFoton).
11 July 2025: Read our paper on how to optimize aperture geometry for accurate THz-TDS in arXiv:2507.08609.
02 July 2025: Check out our new paper (arXiv:2507.00729) where we explore when and how to apply time-domain windowing in THz-TDS data—especially useful for analyzing thin-film resonances.
01 July 2025: Our proposal for a new National Institute of Science and Technology (INCT) in Advanced Quantum Materials was approved, this project is hosted at UNICAMP and coordinated by Prof. Granado.
22-27 June 2025: We presented our work at the “Low-Energy Electrodynamics in Solids” conference in Korea.
17-22 June 2025: Felix delivered an invited talk and chaired a session at the "International Conference on Chiral Phonons" in China.
05 June 2025: Our new cryofree cryostat (Oxford Spectromag) for terahertz magneto-spectroscopy and magneto-optical pump/THz probe was delivered today.
30 May 2025: So much great news in a single day! Congratulations to Eduardo, Gabriel, and Ricardo on receiving FAPESP and CNPq scholarship awards.
22 May 2025: Huge congratulations, Fernanda, on winning the Best Poster Award at EOSBF !
18-22 May 2025: Our group participated in the Autumn Meeting of the Brazilian Physical Society (EOSBF 2025) in Belém, with an invited talk, an oral presentation, and posters across three different areas.
7 May 2025: Congratulations, Eduardo, on your CAPES scholarship award.
17 April 2025: Eduardo has defended his Master's thesis with great success, "Estudo da transição polar dependente da concentração de portadores de carga em filmes finos de Pb0.5Sn0.5Te dopados com bismuto".
16 April 2025: With the arrival of new equipment from Swiss Terahertz, we’re excited to move forward with developing a real-time terahertz imaging setup.
15 April 2025: Congrats, Mayara, on your FAPESP scholarship award!
07 April 2025: Congratulations to Gabriel for defending his Master's dissertation, "Cristais Fotônicos Impressos em 3D para Manipulação da Polarização de Ondas Terahertz," at the IFUSP Graduate Program.
01 April 2025: Felix delivered an invited talk at the UFABC Colóquios da Nano seminar series.
31 March 2025: Our new paper "Metallicity-driven polar transitions in topological epilayers" is online at the arXiv.
18 March 2025: The equipment from TOPTICA to develop our "Multi-user Platform for THz Spectroscopy and Imaging" has been delivered to our lab.
16-21 March 2025: We presented our results in van der Waals minerals at the Joint March Meeting and April Meeting — referred to as the APS Global Physics Summit in Anaheim, CA.
10 March 2025: Welcome, Mayara and Ricardo, to our group in the IFUSP Graduate Program (Doctorate and Master's).
6 March 2025: Our paper was selected as Highlight in Physics (Destaque em Física) of the Brazilian Physical Society. See also the advertisement from IFUSP and DFMT.
19 February 2025: Read our new paper! in npj 2D Mater Appl 9, 16 (2025).
18 February 2025: Felix presented a talk at the IFUSP Summer School about terahertz science. See here the recording (in portuguese).
11 February 2025: Our new paper that describes the terahertz polarization control in van der Waals minerals was accepted for publication in npj 2D Materials and Applications.
22 January 2025: Our paper reporting "Terahertz Cavity Phonon Polaritons in Lead Telluride in the Deep-Strong Coupling Regime" is posted in the arXiv:2501.10856.
21-22 November 2024: Felix presented an invited talk at the IV Workshop of Experimental Physics in the Institute of Physics and Chemistry of Federal University of Itajubá (UNIFEI).
11-15 November 2024: Our new amplified laser was installed ! We will now begin the construction of an OPTP setup.
30 September 2024: Access our new paper! "Shaping terahertz waves using anisotropic shear modes in a van der Waals mineral" is online at arXiv:2409.18933.
29 September - 03 October 2024: Our group participated in the annual meeting of the Brazilian Materials Research Society (B-MRS / SBPMat) in Santos, SP.
16-20 September 2024: Felix presented an invited talk at the 25th International Conference on High Magnetic Fields in Semiconductor Physics (HMF-25) in Warsaw, Poland.
09 September 2024: Fernanda and Laura received new scholarships from PUB-USP to continue their research work in the group. Three new students, Guilherme, Pedro Luka and Gabriel, are joining the group with PIBIC, PIBITI-CNPq and PUB scholarships.
02-06 September 2024: Felix presented an invited talk at the 21st Brazilian Workshop on Semiconductor Physics (BWSP-21) in Campinas, SP. Nicolas and Eduardo also presented their results.
30 August 2024: Our new multi-user facility was approved by FAPESP in the EMU-PMP 2023 Call granting the "Acquisition of a Fast, Versatile and Compact Time-Domain Terahertz Platform for Spectroscopy and Imaging Applications".
11 June 2024: Eduardo and Nicolas received awards at the 3rd Symposium of the Physics Graduate Program. Eduardo for the accomplishments in his first year as MSc student and Nicolas for the development of a THz spectrometer in his PhD thesis.
19-23 May 2024: All our group presented posters and lectures at the Autumn Meeting of the Brazilian Physical Society (EOSBF-2024) in Florianópolis.
06 May 2024: Erick and Giuliano granted scholarships for Science Journalism from FAPESP and Fundação Roberto Marinho.
03 May 2024: Our new paper has been published online in the 1 May 2024 issue of Physical Review Research (Vol. 6, No. 2).
11 April 2024: Felix presented an invited talk at the graduate program in physics of the Universidade Federal de Uberlândia. View Recording.
02 April 2024: Our paper "Interaction-controlled transport in a two-dimensional massless-massive Dirac system: Transition from degenerate to nondegenerate regime" was accepted for publication in Phys. Rev. Research.
03-08 March 2024: Felix presented an invited talk at the APS March Meeting in Minneapolis USA, Symposium Chiral Phonons in Quantum Materials session 15.00.00 (Invitation Only) of Nonequilibrium Quantum Physics (DCMP). View Recording.
22 February 2024: Felix gave a lecture at the IFUSP Summer Course. Here is the recording: As propriedades peculiares dos materiais quânticos.
19-23 February 2024: Eduardo won 1st place in the best poster category for the exceptional presentation entitled "Terahertz generation by photoconductive antennas and femtosecond laser for THz-TDS", at the UFPR/UTFPR 2024 School of Photonics.
15 December 2023: "Observation of interplay between phonon chirality and electronic band topology" was published in Science Advances. Read the press release in Agência FAPESP (portuguese) and in Rice News (english).
14 December 2023: A new thematic grant from FAPESP was approved with Felix as a PI. We will built a new THz-TDS setup with low temperature, high magnetic fields and high power of the THz pulses.
8 December 2023: Representatives of the University of Pécs and the Consulate of Hungary visited our laboratory.
5 December 2023: Daniel received a Poster Award and Eduardo an honorable mention at the International Summer School INFIERI series: "OXFORD 2013- USP 2023: 10 YEARS OF FOSTERING CROSS-DISCIPLINARITY”.
16-17 November 2023: Our research was presented at the III Workshop de Física Experimental da UNIFEI including 3 posters by Daniel, Eduardo and Nicolas, and an invited talk by Felix.