Paper 14093-83
Paper 14093-83
Femtosecond laser fabrication of WS2-doped whispering gallery mode microresonators via two‐photon polymerization
15 April 2026 • 17:45 - 19:30 CEST | Galerie Erasme (Niveau/Level 0)
Abstract
The development of integrated photonics as a versatile platform for information transfer demands optical components with low loss, high precision, and scalability. Two-photon-induced photopolymerization (2PP) offers a promising alternative to lithographic methods due to its high resolution, low cost, and ability to incorporate dopants into polymer matrices. Tungsten disulfide (WS2), with strong photoluminescence, mechanical robustness, and high second-harmonic generation sensitivity, was explored as an optoelectronic dopant for polymer-based whispering-gallery-mode microresonators fabricated via 2PP. Characterization techniques such as UV-Vis spectroscopy, fluorimetry, SEM, DLS, EDX, AFM, and Raman confirmed the successful integration of WS2 nanoparticles. These results highlight the potential of WS2-doped 2PP microresonators for incorporation into advanced integrated photonic systems.
Presenter
Gabriel de Oliveira Campos
Universidade de São Paulo (Brazil)
He holds a Bachelor’s and a Master’s degree in Physics, both from the São Carlos Institute of Physics (IFSC), University of São Paulo (USP), Brazil. His research focuses on optics and photonics, with an emphasis on nonlinear optics, ultrafast laser pulses, and their photonic applications. He is currently pursuing a PhD degree focused on the fabrication of micro-structures via photopolymerization induced by two-photon absorption.