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Jens Anders

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Related publications (21)

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Towards optical MAS magnetic resonance using optical traps

Giovanni Boero, Nergiz Sahin Solmaz, Reza Farsi, Jens Anders

Higher magic angle spinning (MAS) frequencies than currently available are desirable to improve spectral resolution in NMR and EPR systems. While conventional strategies employ pneumatic spinning limited by fluid dynamics, this paper demonstrates the devel ...

Amsterdam2023

Comparison of Different Precision Pseudo Resistor Realizations in the DC-Feedback of Capacitive Transimpedance Amplifiers

Georg Fantner, Jens Anders

In this paper, three different pseudo resistor (PR) realizations are compared regarding their noise and linearity performance within the DC feedback loop of an integrator-differentiator transimpedance amplifier (I-D-TIA). Thanks to its intrinsic shot noise ...

IEEE2019

An analog high-speed single-cycle lock-in amplifier for next generation AFM experiments

Georg Fantner, Jens Anders, Adrian Pascal Nievergelt

In this paper, we present a new architecture for analog amplitude demodulation in high-speed atomic force microscopy (AFM) applications. It features single-cycle capabilities and the possibility to work with elevated cantilever resonance frequencies up to ...

IEEE2018

An integrator-differentiator TIA using a multi-element pseudo-resistor in its DC servo loop for enhanced noise performance

Georg Fantner, Jens Anders

In this paper, we present an integrator-differentiator transimpedance amplifier (TIA) featuring a multielement pseudo-resistor (MEPR) in the DC feedback path for improved noise performance in the presence of non-zero DC input currents. The presented protot ...

IEEE2018

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We report on the design and characterization of single-chip electron spin resonance (ESR) detectors operating at 50 GHz, 92 GHz, and 146 GHz. The core of the single-chip ESR detectors is an integrated LC-oscillator, formed by a single turn aluminum planar ...

Academic Press Inc Elsevier Science2017

In this paper, we present a fully-integrated receiver for NMR microscopy applications manufactured in a 0.13 mu m CMOS technology. The design co-integrates a 10-turn planar detection coil together with a complete quadrature, low-IF downconversion receiver ...

Academic Press Inc Elsevier Science2016

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In this paper we present a novel architecture for phase-locked loop (PLL) based high-speed demodulation of fre- quency-modulated (FM) atomic force microscopy (AFM) signals. In our approach, we use single-sideband (SSB) frequency upcon- version to translate ...

2014

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We report on the design and characterization of a single-chip electron spin resonance detector, operating at a frequency of about 20 GHz and in a temperature range extending at least from 300 K down to 4 K. The detector consists of an LC oscillator formed ...

Elsevier2014

Room temperature strong coupling between a microwave oscillator and an ensemble of electron spins

Jürgen Brugger, Giovanni Boero, David Michael Suter, Jens Anders, Gabriele Gualco, Radoslaw Lisowski

We demonstrate theoretically and experimentally the possibility to achieve the strong coupling regime at room temperature with a microwave electronic oscillator coupled with an ensemble of electron spins. The coupled system shows bistable behaviour, with a ...

Elsevier2013

PLL-based high-speed demodulation of FM signals for real-time AFM applications

Georg Fantner, Jens Anders

In this paper we present a new architecture for PLL-based high-speed demodulation of frequency-modulated AFM signals. In our approach, we use single-sideband frequency up-conversion to translate the AFM signal from the position sensitive detector to a fixe ...

IEEE2013