Article
Chemistry, Multidisciplinary
Umberto Celano, Hai Zhong, Florin Ciubotaru, Laurentiu Stoleriu, Alexander Stark, Peter Rickhaus, Felipe Favaro de Oliveira, Mathieu Munsch, Paola Favia, Maxim Korytov, Patricia Van Marcke, Patrick Maletinsky, Christoph Adelmann, Paul van der Heide
Summary: In this study, nonperturbative field distribution mapping in ultra-scaled magnetic nanowires with diameters down to 6 nm was achieved using scanning nitrogen-vacancy magnetometry, enabling localized, minimally invasive magnetic imaging with sensitivity down to 3 μT Hz(-1/2). The imaging revealed the presence of weak magnetic inhomogeneities inside in-plane magnetized nanowires, largely undetectable with standard metrology. The strong magnetic field confinement in the nanowires allowed for the study of the interaction between the stray magnetic field and the nitrogen-vacancy sensor, clarifying the formation mechanisms for technologically relevant magnetic nanostructures.
Article
Chemistry, Organic
Abigail J. Van Riesen, Ryan E. Johnson, M. Sameer Al-Abdul-Wahid, Cristina Liota, Anjelyn Christyanton, Richard A. Manderville
Summary: In this study, the temperature influence on thiolate addition to Merocyanine (MC) dyes containing different type of donors was investigated. It was found that the zwitterionic phenolate dye displayed impressive temperature sensitivity to thiolate addition, while MC dyes containing neutral donors showed only moderate temperature sensitivity. Thermodynamic parameters and H-1 NMR studies were used to explain the different reactivity of these dyes towards thiolate addition.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hossein T. Dinani, Enrique Munoz, Jeronimo R. Maze
Summary: This theoretical work proposes using the nitrogen-vacancy (NV) center in diamond as a nanosensor to detect electrochemical signals from an electrolyte solution, thus obtaining a concentration sensor. By measuring the inhomogeneous dephasing rate of the electron spin of the NV center, the concentration of ions can be estimated for a range of mean ionic concentrations in the solution.
Article
Materials Science, Multidisciplinary
A. M. Zaitsev, N. M. Kazuchits, K. S. Moe, J. E. Butler, O. V. Korolik, M. S. Rusetsky, V. N. Kazuchits
Summary: The study revealed a close relationship between the 468 nm center and vacancy clusters in brown CVD diamonds, with the former being a highly sensitive indicator of trace vacancy clusters. This center was found in practically every grown CVD diamond, including colorless diamonds of high structural perfection and purity.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Oliver Roman Opaluch, Nimba Oshnik, Richard Nelz, Elke Neu
Summary: The study introduces a planar, omega-shaped microwave antenna based on stripline for spin control of NV color centers in diamond. An optimal antenna design was found through finite integral simulations, and antennas were successfully fabricated on a glass substrate, creating highly uniform microwave fields.
Review
Materials Science, Multidisciplinary
Erika Janitz, Konstantin Herb, Laura A. Voelker, William S. Huxter, Christian L. Degen, John M. Abendroth
Summary: Quantum sensing using optically addressable atomic-scale defects, such as the nitrogen-vacancy (NV) center in diamond, provides new opportunities for highly localized and sensitive characterization of chemical functionality. However, the application of NV centers is hindered by degradation of sensor properties near surfaces, and covalent bonding methods with precise control are needed. This review presents the convergence of diamond surface science and NV-center physics, discussing the advantages of diamond surface properties for NV sensing applications, strategies to mitigate detrimental effects, and emerging applications in single-molecule level chemical surface studies.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Automation & Control Systems
Gaige Ru, Bin Gao, Dong Liu, Qiuping Ma, Haoran Li, Wai Lok Woo
Summary: This article proposes a new electromagnetic structured coupling sensing method for detecting different types of pipeline defects. By simultaneously interacting the excitation modes of a magnetic yoke and a coil, the method can achieve highly sensitive detection of both surface and subsurface defects.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Multidisciplinary Sciences
Alexander Savvin, Alexander Dormidonov, Evgeniya Smetanina, Vladimir Mitrokhin, Evgeniy Lipatov, Dmitriy Genin, Sergey Potanin, Alexander Yelisseyev, Viktor Vins
Summary: The authors successfully demonstrated lasing in (NV-) centers in diamond, achieving improved laser efficiency by fine-tuning the pump conditions to reduce photoionization. Investigation into lasing conditions and gain saturation was conducted under high-power laser pulse pumping of diamond crystal.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Sen Zhang, Benjian Liu, Jiwen Zhao, Yicun Li, Xiaobin Hao, Xiaohui Zhang, Pengfei Qiao, Ying Liang, Bo Liang, Wenchao Zhang, Wenxin Cao, Lei Yang, Jiecai Han, Kang Liu, Bing Dai, Jiaqi Zhu
Summary: This study found that increasing the conversion efficiency of color centers in diamonds on metal surfaces can improve lattice quality and PL intensity, which is significant for the applications of related technologies.
Article
Chemistry, Multidisciplinary
Eiji Nakata, Hisaaki Hirose, Khongorzul Gerelbaatar, Jan Vincent V. Arafiles, Zhengxiao Zhang, Shiroh Futaki, Takashi Morii
Summary: Real-time monitoring of cellular environment, such as intracellular pH, in a defined cellular space provides a comprehensive understanding of dynamic processes in living cells. By assembling multiple fluorophores within a space smaller than the spatial resolution of conventional microscopy, a flexible combinatorial design strategy for developing fluorescent probes is enabled. Assembling fluorescein (CF) and tetramethylrhodamine (CR) on a DNA nanostructure with controlled numbers of each fluorophore type allows for controlled fluorescence emission intensity and ratiometric pH monitoring within the defined space.
Article
Biochemistry & Molecular Biology
Kaiqi Wu, Thea A. Vedelaar, Viraj G. Damle, Aryan Morita, Julie Mougnaud, Claudia Reyes San Martin, Yue Zhang, Denise P. van der Pol, Heidi Ende-Metselaar, Izabela Rodenhuis-Zybert, Romana Schirhagl
Summary: This study demonstrates the utility of diamond magnetometry in studying the free radical response during Semliki Forest virus infection. The alterations in free radical concentration near infectious viruses were measured using the spin-lattice relaxation of NV defect ensembles in intracellular nanodiamonds. The study provides insights into the real-time free radical variation during the early infectious process.
Article
Nanoscience & Nanotechnology
Tobias Luehmann, Severine Diziain, Jan Meijer, Sebastien Pezzagna
Summary: This study reveals that the ST1 center is composed of oxygen and lattice defects. The involvement of oxygen is confirmed through two independent experiments. Moreover, it is found that oxygen implantation at 1200 degrees C with energy ranging from 6 to 50 keV can create ST1 centers with low efficiency. The addition of vacancies and thermal treatment can further activate oxygen into ST1 centers.
Article
Physics, Condensed Matter
Philip Chrostoski, Bruce Barrios, D. H. Santamore
Summary: By investigating the mechanism of magnetic field noise, we found that surface noise depends on impurity spin relaxation and spin precession time, while bulk noise is mainly influenced by carbon-13 impurities.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Chemistry, Multidisciplinary
Tianqi Zhu, Jan Rhensius, Konstantin Herb, Viraj Damle, Gabriel Puebla-Hellmann, Christian L. Degen, Erika Janitz
Summary: The research team addressed the poor signal-to-noise ratio (SNR) issue of optical spin-readout techniques by coupling individual NV centers to optimized diamond nanopillars, leading to improved collection efficiency of fluorescence. The optimized devices showed increased SNR and were compatible with low-numerical-aperture collection optics and a reduced tip radius, reducing experimental overhead and improving spatial resolution for scanning applications.
Article
Materials Science, Multidisciplinary
Yusong Liu, Yue Qin, Qi Wang, Hao Guo, Jie Li, Zhonghao Li, Huanfei Wen, Zongmin Ma, Jun Tang, Jun Liu
Summary: A machine learning-based microwave spectrum detection method using nitrogen vacancy (NV) color centers in diamonds is proposed. The functional relationship between fluorescence spectrum and standard microwave spectrum is established. The research enables microwave spectrum detection and imaging at the microscopic scale.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Marietta Batzer, Brendan Shields, Elke Neu, Claudia Widmann, Christian Giese, Christoph Nebel, Patrick Maletinsky
OPTICAL MATERIALS EXPRESS
(2020)
Editorial Material
Materials Science, Multidisciplinary
Igor Aharonovich, Sejeong Kim, Jin Liu, Arka Majumdar, Elke Neu
OPTICAL MATERIALS EXPRESS
(2020)
Article
Physics, Applied
E. Moreva, E. Bernardi, P. Traina, A. Sosso, S. Ditalia Tchernij, J. Forneris, F. Picollo, G. Brida, Z. Pastuovic, I. P. Degiovanni, P. Olivero, M. Genovese
PHYSICAL REVIEW APPLIED
(2020)
Article
Quantum Science & Technology
Ettore Bernardi, Ekaterina Moreva, Paolo Traina, Giulia Petrini, Sviatoslav Ditalia Tchernij, Jacopo Forneris, Zeljko Pastuovic, Ivo Pietro Degiovanni, Paolo Olivero, Marco Genovese
EPJ QUANTUM TECHNOLOGY
(2020)
Review
Chemistry, Analytical
Dipti Rani, Oliver Roman Opaluch, Elke Neu
Summary: Diamond has seen increased use in various fields in the past two decades due to its outstanding mechanical properties, wide optical transparency, and biocompatibility. Recent advances in methods for SCD nano-structuring have enabled the realization of micro- and nano-structures for a wide range of applications, including the controlled incorporation of optically active point defects such as nitrogen vacancy centers. Challenges in scaling up SCD nano-structure fabrication and its commercial applications are discussed, along with future prospects.
Article
Nanoscience & Nanotechnology
Axel Hochstetter, Elke Neu
Summary: This study investigates the impact of laser wavelength on NV- by studying diamond nanopillars with different geometries, finding significant enhancement of laser fields within the pillars and at the interface between the substrate and nanopillar.
Article
Chemistry, Multidisciplinary
Oliver Roman Opaluch, Nimba Oshnik, Richard Nelz, Elke Neu
Summary: The study introduces a planar, omega-shaped microwave antenna based on stripline for spin control of NV color centers in diamond. An optimal antenna design was found through finite integral simulations, and antennas were successfully fabricated on a glass substrate, creating highly uniform microwave fields.
Article
Physics, Multidisciplinary
Chiara Marletto, Vlatko Vedral, Laura T. Knoll, Fabrizio Piacentini, Ettore Bernardi, Enrico Rebufello, Alessio Avella, Marco Gramegna, Ivo Pietro Degiovanni, Marco Genovese
Summary: This Letter discusses the emergence of irreversibility in a universe with time-reversal symmetric laws using the constructor theory framework. It demonstrates the compatibility of irreversibility with quantum theory's time-reversal symmetric laws by studying a dynamical model based on the universal quantum homogenizer. The physical realizability of this model is also tested through an experimental demonstration using high quality single-photon qubits.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Giulia Petrini, Giulia Tomagra, Ettore Bernardi, Ekaterina Moreva, Paolo Traina, Andrea Marcantoni, Federico Picollo, Klaudia Kvakova, Petr Cigler, Ivo Pietro Degiovanni, Valentina Carabelli, Marco Genovese
Summary: Temperature is a crucial parameter in regulating intracellular processes. Researchers have developed a nanoscale thermometer based on optically detected magnetic resonance in nanodiamonds to detect temperature variations associated with neuronal firing. This breakthrough provides a tool for studying localized temperature gradients under physiological and pathological conditions.
Article
Nanoscience & Nanotechnology
Emilio Corte, Greta Andrini, Elena Nieto Hernandez, Vanna Pugliese, Angelo Costa, Goele Magchiels, Janni Moens, Shandirai Malven Tunhuma, Renan Villarreal, Lino M. C. Pereira, Andre Vantomme, Joao Guilherme Correia, Ettore Bernardi, Paolo Traina, Ivo Pietro Degiovanni, Ekaterina Moreva, Marco Genovese, Sviatoslav Ditalia Tchernij, Paolo Olivero, Ulrich Wahl, Jacopo Forneris
Summary: We conducted the first comprehensive characterization of the structural and photoluminescence properties of optically active centers formed through implantation of Mg+ ions in synthetic diamond. Using electron emission channeling technique, we analyzed the structural configurations of Mg-related defects and observed a major fraction of Mg atoms (around 30% to 42%) in sites consistent with the split-vacancy structure of the MgV complex. Photoluminescence emission studies revealed new spectral features and provided insights into the optimal conditions for stable and intense emission. Our findings have significant implications for quantum information processing applications utilizing the tunable properties of the MgV center.
Proceedings Paper
Computer Science, Theory & Methods
Giulia Petrini, Giulia Tomagra, Ettore Bernardi, Ekaterina Moreva, Paolo Traina, Andrea Marcantoni, Federico Picollo, Paolo Olivero, Klaudia Kvakova, Petr Cigler, Ivo Pietro Degiovanni, Valentina Carabelli, Marco Genovese
Summary: The growing interest in quantum sensors, particularly nitrogen-vacancy (NV) centers in artificial diamond, has led to the study and improvement of sensors capable of detecting physical quantities of biological interest. These sensors, synthesized at the nanometer scale, can be inserted into cells and targeted to specific organelles. Despite their current sensitivity limitations, the detection of temperature variations at the cellular level is a promising application. The experiment presented demonstrates the measurement of local temperature variation in neuronal cell cultures using optically detected magnetic resonance with engineered NV centers in nanodiamonds.
PROCEEDINGS OF 2022 IEEE INTERNATIONAL WORKSHOP ON METROLOGY FOR INDUSTRY 4.0 & IOT (IEEE METROIND4.0&IOT)
(2022)
Article
Optics
Nimba Oshnik, Phila Rembold, Tommaso Calarco, Simone Montangero, Elke Neu, Matthias M. Muller
Summary: Shallow nitrogen-vacancy (NV) centers are promising for high-precision sensing applications. To mitigate the negative effects of the complex environment, feedback-based quantum optimal control is applied, improving sensitivities and robustness through direct search and optimization of microwave pulses.
Review
Quantum Science & Technology
Giulia Petrini, Ekaterina Moreva, Ettore Bernardi, Paolo Traina, Giulia Tomagra, Valentina Carabelli, Ivo Pietro Degiovanni, Marco Genovese
ADVANCED QUANTUM TECHNOLOGIES
(2020)
Article
Quantum Science & Technology
Richard Nelz, Mariusz Radtke, Abdallah Slablab, Zai-Quan Xu, Mehran Kianinia, Chi Li, Carlo Bradac, Igor Aharonovich, Elke Neu
ADVANCED QUANTUM TECHNOLOGIES
(2020)
