6 papers
Characterization of Event-Based Vision Sensors for High-Speed Optical Instrumentation
Tomás Lopes, Joana M. Teixeira, Tiago D. Ferreira +3
Event-based vision sensors provide asynchronous event generation and microsecond timestamp resolution, which may be useful for high-speed optical measurements. However, precise eve…
Towards Neuromorphic Event-Based Sensing for High-Speed Multi-Spectral Classification and Tracking of Microparticles
Joana M. Teixeira, Tomás Lopes, Tiago D. Ferreira +3
Conventional image-based microfluidic systems face an inherent trade-off between throughput, imaging speed, and data bandwidth, limiting their ability to monitor high-velocity flow…
All-optical Edge Computing for Speckle Sensing Interrogation
Tomás Lopes, Joana M. Teixeira, Tiago D. Ferreira +3
Speckle-based sensing exploits the rich environmental information of its high-dimensional spatial intensity patterns. However, the requirement for camera-based acquisition and subs…
Asynchronous Event-Based Spectroscopy for Microsecond-Resolved Spectral Reconstruction
Joana M. Teixeira, Tomas Lopes, Tiago D. Ferreira +3
Many physical and chemical processes of interest evolve on timescales that push the limits of conventional spectroscopic instrumentation. Indeed, the temporal resolution of standar…
Event-based Speckle Interrogation for High-Bandwidth Multi-point Optical Fiber Sensing
Tomás Lopes, Joana Teixeira, Vicente V. Rocha +4
Speckle-based fiber optic sensors are well-known to offer high sensitivity but are strongly limited on the interrogation side by low camera frame rates and dynamic range. To addres…
Multimodal Speckle-polarization Fiber-optic Sensing for Localized and High-bandwidth Vibration Monitoring
Catarina S. Monteiro, Tomás Lopes, Joana Teixeira +3
High-bandwidth and multi-point acoustic and vibration sensing is a critical asset for real-time condition monitoring, maintenance, and surveillance applications. In the case of lar…