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Lars Büttner

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Articles by Lars Büttner

All-optical closed-loop control of human cardiomyocyte networks exploiting holographic optogenetics

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By Felix Schmieder, Wolfram-Hubertus Zimmermann, Olaf Bergmann, Lars Büttner, Jürgen W. Czarske, Robert Wendland, Muhammad Atif Sikandar, Frithjof Paul Knüppel
| Nature Verified
Abstract Heart diseases can trigger life-threatening arrhythmias by disrupting cardiac contraction wavefront propagation. In contrast to conventional treatments like electrical pacemakers, optogenetics offers high spatial and temporal resolution for non-invasive interrogation and modulation of cellular activity. However, combining sensing and actuation into a real-time control loop remains challenging.
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Field-Programmable System-on-Chip-Based Control System for Real-Time Distortion Correction in Optical Imaging

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By Technische Universität Dresden, Lars Büttner, Hannes Radner, Johannes Stange
| tu-dresden.de
The digital transition requires real-time control of complex systems with short loop time and low latency in various applications. Field-programmable gate arrays (FPGAs) are, in principle, capable of complying with this task but demand, on the other hand, a high programming effort. In this article, we propose a field-programmable system on chip (FPSoC) as a hybrid solution of an FPGA and a central processing unit (CPU) on a single monolithic die to combine the strengths of both architectures.
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Special Issue on Computational Ultrasound Imaging and Applications

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By Richard Nauber, Jürgen W. Czarske, Lars Büttner
| MDPI
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
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Measurement uncertainty analysis of field-programmable gate-array-based, real-time signal processing for ultrasound flow imaging

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By Richard Nauber, TUD Dresden, Lars Büttner, Jürgen W. Czarske
| tu-dresden.de
Research in magnetohydrodynamics (MHD) aims to understand the complex interactions of electrically conductive fluids and magnetic fields. A promising approach for investigating complex instationary flow phenomena are lab-scale experiments with low-melting alloys. They require a noninvasive flow instrumentation for opaque liquids with a high spatiotemporal resolution, a low velocity uncertainty and a long measurement duration.
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