Publications by Reza Farsi | EPFL Graph Search

Single chip microsystems for electron spin resonance spectroscopy and inductive proximity sensing

Electron spin resonance spectroscopy is a non-invasive technique to explore paramagnetic systems. ESR spectrometers operate in a wide range of frequencies from 1 MHz to 1 THz, and at temperatures from 1000 K to mK. Boero's group pioneered a novel approach ...

EPFL2025

Superconducting microwave oscillators as detectors for ESR spectroscopy

Jürgen Brugger, Giovanni Boero, Yu Rao, Reza Farsi

Microwave superconducting resonators are extensively studied in fields such as quantum computing and electron spin resonance (ESR) spectroscopy. However, the integration of superconducting resonators with feedback mechanisms to create ultra-low noise oscil ...

2025

Performance Comparison of Shape Memory Polymer Structures Printed by Fused Deposition Modeling and Melt Electrowriting

Jürgen Brugger, Arnaud Bertsch, Biranche Tandon, Taavet Kangur, Reza Farsi

Fused deposition modeling (FDM) and melt electrowriting (MEW) are techniques that use polymer fibers as building blocks for printing complex 3D structures, with fibers at the macroscopic and micrometer scale. Here, FDM and MEW are used to produce fibers of ...

Wiley2024

200 GHz single chip microsystems for dynamic nuclear polarization enhanced NMR spectroscopy

Giovanni Boero, Nergiz Sahin Solmaz, Reza Farsi

Dynamic nuclear polarization (DNP) is one of the most powerful and versatile hyperpolarization methods to enhance nuclear magnetic resonance (NMR) signals. A major drawback of DNP is the cost and complexity of the required microwave hardware, especially at ...

Nature Research2024

X-Band Single Chip Integrated Pulsed Electron Spin Resonance Microsystem

Nergiz Sahin Solmaz, Reza Farsi

We report on the design and characterization of a single chip integrated pulsed electron spin resonance detector operating at 9.1 GHz. The microsystem consists of an excitation microcoil, a detection microcoil, a low noise microwave preamplifier, a mixer, ...

American Chemical Society (ACS)2024

Fabrication and characterization of NbTi microwave superconducting resonators

Jürgen Brugger, Giovanni Boero, Nergiz Sahin Solmaz, Reza Farsi

Superconducting resonators are widely used in fields spanning from quantum computing to electron spin resonance (ESR) spectroscopy. With the goal of realizing superconducting resonators, a broad variety and combination of superconducting materials, substra ...

ELSEVIER2023

500 MHz high resolution proximity sensors with fully integrated digital counter

Giovanni Boero, Nergiz Sahin Solmaz, Reza Farsi

We report on the design and characterization of two inductive proximity sensors based on LC oscillators operating at 500 MHz. The distance from the target is obtained by measuring the oscillation frequency variation. Both sensors contain an off-chip LC res ...

ELSEVIER SCI LTD2023

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 ...

Elsevier2023