Articles | Volume 2, issue 2
https://doi.org/10.5194/mr-2-699-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/mr-2-699-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Sep 2021
Research article |
| 07 Sep 2021
| 07 Sep 2021
On the modeling of amplitude-sensitive electron spin resonance (ESR) detection using voltage-controlled oscillator (VCO)-based ESR-on-a-chip detectors
Anh Chu
Institute of Smart Sensors, University of Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart, Germany
Benedikt Schlecker
Institute of Smart Sensors, University of Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart, Germany
Michal Kern
Institute of Smart Sensors, University of Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart, Germany
Justin L. Goodsell
Department of Chemistry, University of Florida, Gainesville, FL32611-7200, USA
Alexander Angerhofer
Department of Chemistry, University of Florida, Gainesville, FL32611-7200, USA
Klaus Lips
Department Spins in Energy Materials and Quantum Information Science (ASPIN), Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
Jens Anders
CORRESPONDING AUTHOR
Institute of Smart Sensors and IQST (Center for Integrated Quantum Science and Technology), University of Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart, Germany
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Cited
13 citations as recorded by crossref.
- Monitoring the state of charge of vanadium redox flow batteries with an EPR-on-a-Chip dipstick sensor S. Künstner et al. 10.1039/D4CP00373J
- Compact Electron Paramagnetic Resonance on a Chip Spectrometer Using a Single Sided Permanent Magnet M. Segantini et al. 10.1021/acssensors.4c00788
- Recent advances in microresonators and supporting instrumentation for electron paramagnetic resonance spectroscopy N. Abhyankar et al. 10.1063/5.0097853
- Dead Time-Free Detection of NMR Signals Using Voltage-Controlled Oscillators M. Kern et al. 10.1007/s00723-023-01599-8
- Microwave field mapping for EPR-on-a-chip experiments S. Künstner et al. 10.1126/sciadv.ado5467
- Towards single-cell pulsed EPR using VCO-based EPR-on-a-chip detectors M. Hassan et al. 10.1515/freq-2022-0096
- Closed-form and technology independent phase noise relation for LC oscillators M. Moradnezhad & H. Miar-Naimi 10.1108/COMPEL-10-2022-0356
- Graphene quantum dot bolometer for on-chip detection of organic radical J. Hrubý et al. 10.1063/5.0191087
- Current Trends in VCO-Based EPR M. Kern et al. 10.1007/s00723-024-01698-0
- Celebration of 80 Years of EPR K. Salikhov et al. 10.1007/s00723-024-01688-2
- Operando detection of dissolved oxygen in fluid solution using a submersible rapid scan EPR on a chip dipstick sensor J. McPeak et al. 10.1038/s41598-025-93591-4
- Rapid-scan electron paramagnetic resonance using an EPR-on-a-Chip sensor S. Künstner et al. 10.5194/mr-2-673-2021
- Electrically Detected Magnetic Resonance on a Chip (EDMRoC) for Analysis of Thin-Film Silicon Photovoltaics M. Segantini et al. 10.3390/magnetochemistry9070183
11 citations as recorded by crossref.
- Monitoring the state of charge of vanadium redox flow batteries with an EPR-on-a-Chip dipstick sensor S. Künstner et al. 10.1039/D4CP00373J
- Compact Electron Paramagnetic Resonance on a Chip Spectrometer Using a Single Sided Permanent Magnet M. Segantini et al. 10.1021/acssensors.4c00788
- Recent advances in microresonators and supporting instrumentation for electron paramagnetic resonance spectroscopy N. Abhyankar et al. 10.1063/5.0097853
- Dead Time-Free Detection of NMR Signals Using Voltage-Controlled Oscillators M. Kern et al. 10.1007/s00723-023-01599-8
- Microwave field mapping for EPR-on-a-chip experiments S. Künstner et al. 10.1126/sciadv.ado5467
- Towards single-cell pulsed EPR using VCO-based EPR-on-a-chip detectors M. Hassan et al. 10.1515/freq-2022-0096
- Closed-form and technology independent phase noise relation for LC oscillators M. Moradnezhad & H. Miar-Naimi 10.1108/COMPEL-10-2022-0356
- Graphene quantum dot bolometer for on-chip detection of organic radical J. Hrubý et al. 10.1063/5.0191087
- Current Trends in VCO-Based EPR M. Kern et al. 10.1007/s00723-024-01698-0
- Celebration of 80 Years of EPR K. Salikhov et al. 10.1007/s00723-024-01688-2
- Operando detection of dissolved oxygen in fluid solution using a submersible rapid scan EPR on a chip dipstick sensor J. McPeak et al. 10.1038/s41598-025-93591-4
2 citations as recorded by crossref.
Latest update: 08 Apr 2025
Short summary
Novel electron spin resonance (ESR) detectors based on voltage-controlled oscillators (VCOs) have been attracting attention, mainly due to the possibility of integrating the whole ESR spectrometer onto a single printed circuit board at relatively low cost while maintaining a performance comparable to commercial solutions. We present an experimental setup where the signal is detected as a change in VCO oscillation amplitude, along with in-depth theoretical analysis of the novel readout scheme.
Novel electron spin resonance (ESR) detectors based on voltage-controlled oscillators (VCOs)...
