51 citations · 194 across the 17 of their papers we have counts for
17 papers
Impact of helium ion implantation dose and annealing on dense near-surface layers of NV centers
A. Berzins, H. Grube, E. Sprugis +2
Implantation of diamonds with helium ions becomes a common method to create hundreds-nanometers-thick near-surface layers of NV centers for high-sensitivity sensing and imaging app…
Tunable magnetic field source for magnetic field imaging microscopy
Andris Berzins, Hugo Grube, Reinis Lazda +3
In this work we present a novel, compact, power efficient magnetic field source design for magnetic field imaging microscopy. The device is based on a pair of diametrically magneti…
NV microscopy of thermally controlled stresses caused by CrO thin films
Andris Berzins, Janis Smits, Andrejs Petruhins +4
Many modern applications, including quantum computing and quantum sensing, use substrate-film interfaces. Particularly, thin films of chromium or titanium and their oxides are comm…
Surface magnetic structure investigation of a nanolaminated MnGaC thin film using a magnetic field microscope based on Nitrogen-Vacancy centers
Andris Berzins, Janis Smits, Andrejs Petruhins +1
This work presents a magnetic field imaging method based on color centers in diamond crystal applied to a thin film of a nanolaminated MnGaC MAX phase. Magnetic properties of t…
Characterization of microscopic ferromagnetic defects in thin films using magnetic microscope based on Nitrogen-Vacancy centres
Andris Berzins, Janis Smits, Andrejs Petruhins
In this work we present results acquired by applying magnetic field imaging technique based on Nitrogen-Vacancy centres in diamond crystal for characterization of magnetic thin fil…
Dynamic nuclear spin polarization in nitrogen-vacancy centers in diamond
Laima Busaite, Reinis Lazda, Andris Berzins +3
We studied the dynamic nuclear spin polarization of nitrogen in negatively charged nitrogen-vacancy (NV) centers in diamond both experimentally and theoretically over a wide range…
Investigation of temperature dependence of magnetic properties of CrO thin film structure using a magnetic field imaging technique based on Nitrogen-Vacancy centres in diamond crystal
Andris Berzins, Janis Smits, Andrejs Petruhins +3
This work presents a magnetic field imaging method based on color centres in diamond crystal applied to thin film structure. To demonstrate the capacity of our device we have used…
Cross-relaxation studies with optically detected magnetic resonances in nitrogen-vacancy centers in diamond in an external magnetic field
Reinis Lazda, Laima Busaite, Andris Berzins +5
In this paper cross-relaxation between nitrogen-vacancy (NV) centers and substitutional nitrogen in a diamond crystal was studied. It was demonstrated that optically detected magne…
Hyperfine level structure in nitrogen-vacancy centers near the ground-state level anticrossing
Marcis Auzinsh, Andris Berzins, Dmitry Budker +6
Energy levels of nitrogen-vacancy centers in diamond were investigated using optically detected magnetic-resonance spectroscopy near the electronic ground-state level anticrossing…
Level anti-crossing magnetometry with color centers in diamond
Huijie Zheng, Georgios Chatzidrosos, Arne Wickenbrock +7
Recent developments in magnetic field sensing with negatively charged nitrogen-vacancy centers (NV) in diamond employ magnetic-field (MF) dependent features in the photoluminescenc…
Longitudinal spin-relaxation in nitrogen-vacancy centers in electron irradiated diamond
A. Jarmola, A. Berzins, J. Smits +7
We present systematic measurements of longitudinal relaxation rates () of spin polarization in the ground state of the nitrogen-vacancy (NV) color center in synthetic di…
Spatial dynamics of laser-induced fluorescence in an intense laser beam: experiment and theory in alkali metal atoms
Marcis Auzinsh, Andris Berzins, Ruvin Ferber +2
We have shown that it is possible to model accurately optical phenomena in intense laser fields by taking into account the intensity distribution over the laser beam. We developed…
Alignment-to-orientation conversion in a magnetic field at nonlinear excitation of the line of rubidium: experiment and theory
M. Auzinsh, A. Berzins, R. Ferber +4
We studied alignment-to-orientation conversion caused by excited-state level crossings in a nonzero magnetic field of both atomic rubidium isotopes. Experimental measurements were…
Relaxation mechanisms affecting magneto-optical resonances in an extremely thin cell: experiment and theory for the cesium D line
M. Auzinsh, A. Berzins, R. Ferber +5
We have measured magneto-optical signals obtained by exciting the line of cesium atoms confined to an extremely thin cell (ETC), whose walls are separated by less than one mi…
Coherent and incoherent processes responsible for various characteristics of nonlinear magneto-optical signals in rubidium atoms
Marcis Auzinsh, Andris Berzins, Ruvin Ferber +3
We present the results of an investigation of the different physical processes that influence the shape of the nonlinear magneto-optical signals both at small magnetic field values…
Enhancement of level-crossing resonances in rubidium atoms by frequency control of the exciting radiation field
Marcis Auzinsh, Andris Berzins, Ruvin Ferber +4
We studied magneto-optical resonances caused by excited-state level crossings in a nonzero magnetic field. Experimental measurements were performed on the transitions of the …
Conversion of bright magneto-optical resonances into dark at fixed laser frequency for D2 excitation of atomic rubidium
Marcis Auzinsh, Andris Berzins, Ruvin Ferber +4
Nonlinear magneto-optical resonances on the hyperfine transitions belonging to the D2 line of rubidium were changed from bright to dark resonances by changing the laser power densi…