By Qnami
This foundational work serves as the basis for Qnami Quantilevers, state-of-the-art quantum sensors that enable highly precise and non-invasive magnetic field measurements at the nanoscale.
Quantilever MX+ represents the state-of-the-art quantum diamond tips that deliver the highest demonstrated signal-to-noise ratio for scanning NV magnetometry. The innovative tip design maximizes the light collection efficiency while ensuring an optimal distance between the NV center and the sample surface. Equip Qnami ProteusQ with the Quantilever MX+ quantum diamond tips to further enhance its sensing performance. With their high signal-to-noise ratio, Quantilever MX+ diamond probes unlock the measurement of even weaker magnetic fields. The Product Offer Pillar Geometry: Parabolic Signal-to-noise ratio: 3-times higher than with conventional tip design Magnetic Sensitivity: ~ 3μT/(Hz)1/2 Patent Family: WO2021151796A1 System: Qnami ProteusQ Single Units CHF 2800 1 Quantilever MX+ Starting Pack CHF 5600 2 probes from our Quantilever MX + series and 2 probes from our Quantilever DX series Measure extremely weak magnetic fields The high signal-to-noise ratio and sensitivity of Quantilever MX+ further facilitate the characterization of materials with extremely weak stray fields such as antiferromagnets or multiferroics. Perform SNVM at cryogenic temperatures Quantilever MX+ enables higher photon count rates and directional photon emission with minimal losses allowing the use of objective lenses with small NA and relaxing potential working distance constraints. Perform AC magnetometry Due to the higher signal-to-noise ratio and photon count rates, AC magnetometry protocols benefit drastically from reduced measurement time. Groundbreaking design The latest cutting-edge design advancement in diamond tips made commercially available. Highest precision Up to 3 times higher SNR compared to conventional tip designs. Highly efficient measurements Record-low laser powers and photon emission into minimal numerical aperture. The innovative design is the result of a fruitful collaboration with the Quantum Sensing Lab (led by Prof. Patrick Maletinsky) at the University of Basel. The innovation initiated through the work done by Hedrich et al in 2020 and continued through technoloy transfer with the Qnami Quantum Foundry who optimized the fabrication process and made it the third generation of Qnami Quantilevers. Optimized pillar geometry To effectively guide photons toward optics The parabolic shape effectively guides emitted photons toward the collection optics. The flat end facet ensures the proximity between the NV center and the sample surface preserving the high spatial resolution in magnetometry measurements. Improved photonic waveguide To maximize signal collection The parabolic reflector guides on average 80% of the emitted photons toward the collection optics. The concentrated photon flux allows the use of objectives with small NA (<0.5) and relaxes potential working distance constraints. State-of-the-art fabrication techniques To icrease the signal to noise ratio Signal-to-noise ratio enhanced – parasitic background fluorescence is minimized by optimal nanofabrication. Integration times in the sub-ms range are unlocked through high NV signal and minimized noise leading to improved statistics. Diamond Tips for Nanoscale Resolution The optimized design of the Quantilever MX+ pillar maximizes the light collection efficiency while preserving the nanoscale resolution. Your packaging can be re-used. Ship it back to us and you’ll get a discount on your next order.
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Qnami ProteusQ-LT is a complete scanning NV microscope for operations at cryogenic temperatures (2.5K). Built from the ground up for material scientists it provides new state of the art in nanoscale imaging, while minimizing the operational overheads traditionally related to low-temperature scanning probe microscopy. <50nm resolution and micro Tesla sensitivity opens a new world for nanoscale material exploration in cryogenic conditions Unique accessibility and automated procedures allow you to focus your time on your research Our unique team of expert engineers and scientists supports you in your research ProteusQ-LT table-top design offers a new approach to microscopy in cryogenic environments. Unprecedented accessibility and wide optical access simplify day to day operations. Table-top cryostat platform - Powered by Qinu - 2.5K base temperature - Ultra-low vibration levels Sample and probes - Compatible with QuantileverTM high resolution probe technology - Safe and fast probe and sample exchange mechanisms - Top and later optical access with large fields of view SNVM - Optimized photon collection efficiency ensuring uT sensitivity - Large scan ranges - LabQ software interface (same as ProteusQ) - Minimum Temperature 2.5K - Magnetic Sensitivity 3uT/sqrtHz (CW-ODMR) - Spatial Resolution <50nm - Sample Scan Range 12 x 12 x 6um @4K - Optical Scan Range 100 x 100um - Optical side access with CMOS camera for sample & probe observation - Imaging modalities (continous-wave): Quenching mode, IsoB, Dual-IsoB, FullB, Fast-FullB - Imaging modalities (pulsed): Rabi, T1, T2, Ramsey and customized sequences via Tool-Box - Optional superconductive vector magnet with up to 0.5 x 0.5 x 3T field The ProteusQ-LT is fully integrated with our LabQ software interface, providing the same consistent and reliable platform used across the ProteusQ product line. Built on the open-source Qudi framework, LabQ offers an intuitive environment for working with multiple measurement modalities. Years of development across our platforms ensure a stable, feature-rich, and well-tested toolset. Key features - Unified interface – A consistent workflow across all ProteusQ systems. - Automation – Streamlined alignment and routine procedures. - Advanced capabilities – Powerful tools to support complex experimental setups. The result is a microscope and software ecosystem designed to make advanced measurements more accessible, efficient, and reproducible. Get in touch with Joerg. He'll be happy to answer all your questions about ProteusQ.
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Magneto PQ is a compact magnetic field source fully integrated in the Qnami ProteusQ. With it, you can apply strong positive and negative magnetic fields both in-plane and out-of-plane with respect to the sample, to measure the magnetic behaviour of your samples. It is the ultimate magnetic characterization add-on of the ProteusQ microscope to probe a wide range of magnetic phenomena and validate the design of novel devices by applying magnetic fields while benefiting from the ultra-high precision of scanning NV magnetometry. apply positive and negative field to perform full hysteresis loops and provide valuable insight into a wide range of materials Run complex measurements protocols and acquire high confidence data hassle-free condition magnetic textures and topological structures in a wide range of materials at room temperature The fully integrated and compact design of Magneto PQ is based on motorized permanent magnets and flux concentrators that generate strong positive and negative magnetic fields in the region of interest. The design allows you to easily switch between in-plane and out-of-plane magnetic fields to probe any sample according to you research needs. In Magneto PQ, permanent magnets avoid the need for water cooling, which would induce unnecessary experimental complexity. The mounting frame keeps the magnet mechanically decoupled from the sample and the NV probe to further avoid mechanical vibrations. This results in greater flexibility and less vibration to ensure accuracy in the measurements and maintain AFM contact while tuning the magnetic fields. With a guided routine helps you can check and optimize the alignment of the NV quantization axis with the magnetic field for best performance. Tailoring measurements portocols to your experiment needs becomes intuitive with easy-to-use scripts in Jupyter Notebook and full access to relevant parameters. The closed loop scanner and high stability of ProteusQ enables you to perform hours of magnetic imaging cycles without losing the exact mapping area. The operation of Magneto PQ is fully integrated in the ProteusQ software and guarantees reliable and consistent results. With the ability to enter any given position of the sample and get the required field strength from the magnet in that position, Magneto PQ saves time and effort in adjusting the magnet and ensures precise measurements. ProteusQ’s unrivalled thermal stability and closed-loop piezo positioners allow full access to the sample and tip area during experiments, while enabling unattended measurements of magnetic imaging cycles over several hours. In only three steps, you will be able to perform complex measurements protocolos hasslefree! Magneto PQ allows the user to probe the behavior of magnetic nanostructures under external bias fields and validate new designs of their devices. Users can manipulate domain walls, initialize and characterize artificial spin ice structures, create skyrmions, influence spin waves, switch magnetic memory bits, and much more. Data taken combining ProteusQ with Magneto PQ on relevant devices will be shortly published in high-imact scientific journals. If you want to know what we have been up to, get in touch with our Application Scientist. He will be happy to tell you more. The Qnami ProteusQ opens a new window on your research and gives you a new level of control to drive innovation in the design, creation and delivery of smart and energy-efficient electronics. Equipe Qnami ProteusQ with Magneto PQ to extend its characterization capabilities. Get in touch with Ben and Joerg. They will be happy to answer your questions.
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Diamond Scanning Probes with a single NV center - Quantilever MX The Quantilever MX series are diamond probes with a single-spin NV center for imaging of magnetic fields. We designed this diamond probes series for magnetic imaging in nanoscale resolution. With a single NV at the apex of the tip, our Quantilever MX scans surfaces with extreme precision and allow non-perturbative analysis of a large variety of magnetic materials. Combine this diamond probes series with our ProteusQ microscope to get the best possible result. Quantilever M6 Quantilever M12 Single NV: yes / yes Implantation energy: 6keV / 12keV Nominal NV depth: 10nm / 18nm the nominal NV depth is calculated from the parameters of implantation using SRIM (http://www.srim.org) and represents a lower-bound estimation of the actual NV depth. Tuning Fork Sensor Tuning fork carrier Ceramic PCB (6.5 mm x 5.1 mm x 0.4 mm) with 2 gold plated contacts Mechanical properties Q-factor: 1000 (guaranteed) Resonance frequency: 32 kHz (typical) Diamond Probe Product packaging 1 unit/box Diamond cantilever geometry 19 um x 6 um (typical) Diamond tip apex radius 100 nm (typical) NV lifetime up to 6 months NV center orientation 53° ([111] orientation with respect to [100] surface) g 2 (t=0)< 0.5 Optical spin readout contrast (in CW ESR) 15% ODMR contrast T2 1 μsec (typical) Diamond Probes for Nanoscale Resolution Each Quantilever MX contains a single atomic defect used to deliver images with extreme precision. Innovative Quantilever MX is based on a patented technology developed and owned by us. This makes it unique. Precise Each sensor behaves like a true single-spin momentum, allowing non-perturbative analysis of different materials with atomic precision. Flexible It works best with our ProteusQ microscope system but its not limited to it. Combine our diamond probes Quantilever MX series with our ProteusQ scanning NV microscope for direct quantitative measurement of the magnetic field with minimal calibration requirements. Your packaging can be re-used. Ship it back to us and you’ll get a discount on your next order.
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