A5026831646- Quantum optics and atomic interactions
- Atomic and Subatomic Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Diamond and Carbon-based Materials Research
- Advanced Frequency and Time Standards
- Advanced Fiber Laser Technologies
- High-pressure geophysics and materials
- Mechanical and Optical Resonators
- Spectroscopy and Laser Applications
- Spectroscopy and Quantum Chemical Studies
- Quantum Information and Cryptography
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Quantum, superfluid, helium dynamics
- Force Microscopy Techniques and Applications
- Laser-Matter Interactions and Applications
- Magneto-Optical Properties and Applications
- Photonic Crystal and Fiber Optics
- Atomic and Molecular Physics
- Optical Network Technologies
- Electronic and Structural Properties of Oxides
- Nonlinear Photonic Systems
- Laser Design and Applications
- Photonic Crystals and Applications
- Dark Matter and Cosmic Phenomena
Jagiellonian University
2016-2025
Institute of Physics
2013-2024
University of Warsaw
2015-2023
Laboratoire d'Informatique de Paris-Nord
2021
Photonics (United States)
2021
Nicolaus Copernicus University
2015
Lukasiewicz Research Network - Krakow Institute of Technology
2010
National Physical Laboratory
1980-2010
National Institute of Standards and Technology
2001-2002
University of Colorado Boulder
2001-2002
The authors review the history, current status, physical mechanisms, experimental methods, and applications of nonlinear magneto-optical effects in atomic vapors. They begin by describing pioneering work Macaluso Corbino over a century ago on linear (in which properties medium do not depend light power) vicinity resonances. These are then contrasted with various phenomena that have been studied both theoretically experimentally since late 1960s. In recent years, field magneto-optics has...
Nitrogen-vacancy (NV) centers in millimeter-scale diamond samples were produced by irradiation and subsequent annealing under varied conditions. The optical spin-relaxation properties of these characterized using confocal microscopy, visible infrared absorption, optically detected magnetic resonance. sample with the highest ${\text{NV}}^{\ensuremath{-}}$ concentration, approximately 16 ppm $(2.8\ifmmode\times\else\texttimes\fi{}{10}^{18}\text{ }{\text{cm}}^{\ensuremath{-}3})$, was prepared...
Stable topological defects of light (pseudo)scalar fields can contribute to the Universe's dark energy and matter. Currently, combination gravitational cosmological constraints provides best limits on such a possibility. We take an example domain walls generated by axionlike field with coupling spins standard-model particles show that, if galactic environment contains network walls, terrestrial experiments aimed at detection wall-crossing events are realistic. In particular, geographically...
A novel experimental scheme enabling the investigation of transient exotic spin couplings is discussed. The based on synchronous measurements optical‐magnetometer signals from several devices operating in magnetically shielded environments distant locations (≳ 100 km). Although signatures such may be present signal a single magnetometer, it would challenging to distinguish them noise. By analyzing correlation between multiple, geographically separated magnetometers, not only possible...
Recent work investigating resonant nonlinear magneto-optical rotation (NMOR) related to long-lived ($τ\ts{rel} \sim 1 {\rm s}$) ground-state atomic coherences has demonstrated potential magnetometric sensitivities exceeding $10^{-11} G/\sqrt{Hz}}$ for small ($\lesssim μG}$) magnetic fields. In the present work, NMOR using frequency-modulated light (FM NMOR) is studied in regime where longitudinal field geophysical range ($\sim 500 mG}$), of particular interest many applications. this a...
A radio-frequency tunable atomic magnetometer with a sensitivity of about 1 fT/Hz1/2 in range 10–500 kHz is demonstrated. The operated the orientation configuration which atoms are pumped to stretched state by scheme based on indirect optical pumping using only one unmodulated, low-power laser. operates cesium atoms, have sufficient vapor pressure near room temperature enable high magnetometric sensitivities. technique enables compact and robust module be constructed that could become an...
We present an experimental study of the longitudinal electron-spin relaxation ensembles negatively charged nitrogen-vacancy (NV−) centers in diamond. The measurements were performed with samples having different NV− concentrations and at temperatures magnetic fields. found that rate $T_{1}^{-1}$ increases when transition frequencies orientations become degenerate interpret this as cross-relaxation caused by dipole-dipole interaction.
We describe a rubidium circular-state-preparation technique suited to high principal quantum numbers. It combines an excellent selectivity and good efficiency. Preliminary spectroscopic tests on the n=50\ensuremath{\rightarrow}n=51 circular transition at 51 GHz are reported.
The technique of nonlinear magneto-optical rotation with amplitude modulated light is developed. an alternative to its counterpart frequency and can be applied sensitive measurements magnetic fields ranging from microgauss the Earth-field level. signals exhibit nontrivial features such as narrowed non-Lorentzian line shapes multicomponent resonances.
Abstract We report a stability below 7 × 10 −17 of two independent optical lattice clocks operating with bosonic 88 Sr isotope. The value (429 228 066 418 008.3(1.9) syst (0.9) stat Hz) the absolute frequency 1 S 0 – 3 P transition was measured an comb referenced to local representation UTC by 330 km-long stabilized fibre link. result verified series measurements on and agrees recommendation Bureau International des Poids et Mesures.
We report on an all-optical magnetometric technique based nonlinear magneto-optical rotation with amplitude-modulated light. The method enables sensitive magnetic field measurements in a broad dynamic range. demonstrate the sensitivity of 4.3×10−9G∕Hz at 10mG and tracking range 40mG. fundamental limits factors determining current performance magnetometer are discussed.
The existence of cross-over resonances makes saturated-absorption spectra very complicated when external magnetic field B is applied. It demonstrated for the first time that use micrometric-thin cells (MTC, $L\approx40\,\mu$m) allows application SA quantitative studies frequency splittings and shifts Rb atomic transitions in a wide range fields, from 0.2 up to 6 kG (20-600 mT). We compare obtained with MTC those other techniques, present applications optical magnetometry micrometer spatial...
Negatively charged nitrogen-vacancy (NV${}^{\ensuremath{-}}$) centers in diamond have generated much recent interest for their use sensing. The sensitivity improves when the NV ground-state microwave transitions are narrow, but these suffer from inhomogeneous broadening, especially high-density ensembles. To better understand and remove sources of we demonstrate room-temperature spectral ``hole burning'' transitions. We find that hole burning removes broadening caused by magnetic fields...
We report a photon shot-noise-limited (SNL) optical magnetometer based on amplitude modulated rotation using room-temperature 85Rb vapor in cell with anti-relaxation coating. The instrument achieves sensitivity of \documentclass[12pt]{minimal}\begin{document}$70\ {\rm fT}/\sqrt {\mathrm{Hz}}$\end{document}70 fT / Hz at 7.6 μT. Experimental scaling noise power, agreement theoretical predictions, confirms the SNL behaviour from 5 μT to 75 combination best-in-class and operation makes system...
We analyse the time-of-flight method of measuring temperature cold trapped atoms in specific case short distances probe beam from trap centre and finite atomic cloud size. theoretically examine influence shape its distance initial position on evaluation. These results are then verified with a three-dimensional Monte Carlo simulation applied to our experimental data show that proposed procedure allows accurate reliable determination temperature.
The ability to create time-dependent magnetic fields of controlled polarization is essential for many experiments with resonance. We describe a microstrip circuit that allows us generate strong field at microwave frequencies arbitrary adjusted polarization. performance demonstrated by applying it an optically detected resonance and Rabi nutation in nitrogen-vacancy color centers diamond. Thanks high efficiency the proposed degree circular 85%; possible address specific spin states diamond...
Magnetometry with nitrogen-vacancy (NV) color centers in diamond has gained significant interest among researchers recent years. Absolute knowledge of the three-dimensional orientation magnetic field is necessary for many applications. Conventional magnetometry measurements are usually performed NV ensembles a bulk thin layer or scanning probe form tip, which requires smooth sample surface and proximity probing device, often limiting sensing capabilities. Our approach to use micro-...
Integration of optically active diamond particles with glass fibers is a powerful method scaling diamond's magnetic sensing functionality. We propose novel approach for the integration containing nitrogen-vacancy centers directly into fiber core. The core fabricated by stacking preform from 790 soft canes, drawn single rod dip-coated submicron suspended in isopropyl alcohol. This enables manual control over distribution nanoscale features, here – across optical verify this mapping using...
Abstract Negatively charged nitrogen-vacancy (NV) diamond magnetometers are promising candidates for room-temperature magnetic field sensing. However, systematic studies of sensors that evaluate the sensitivity NV-diamond as a function multiple parameters sparse. By comparing optically detected resonance (ODMR) dips four single-crystal diamonds, we explored how photon shot-noise-limited and experimental noise floor were influenced by density NV centers methods their formation. The lowest was...
Magnetometry using nitrogen-vacancy (N-<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><a:mi>V</a:mi></a:math>) color centers in diamond predominantly relies on microwave spectroscopy. However, microwaves may hinder certain studies involving biological systems or thin conductive samples. This work demonstrates a wide-field, microwave-free imaging magnetometer utilizing N-<d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
We describe a method of selective generation and study polarization moments up to the highest-rank kappa=2F possible for quantum state with total angular momentum F. The technique is based on nonlinear magneto-optical rotation frequency-modulated light. Various are distinguished by periodicity light-polarization induced atoms during Larmor precession exhibit distinct light-intensity frequency dependences. apply 87Rb contained in vapor cell antirelaxation coating. Distinct ultranarrow (1-Hz...
Larmor precession of laser-polarized atoms contained in anti-relaxation-coated cells, detected via nonlinear magneto-optical rotation (NMOR) is a promising technique for new generation ultra-sensitive atomic magnetometers. For magnetic fields directed along the light propagation direction, resonances NMOR appear when linearly polarized frequency- or amplitude-modulated at twice frequency. Because frequency these depends on magnitude but not direction field, they are useful scalar...
We report on experimental and theoretical study of the nonlinear Faraday effect under conditions electromagnetically induced transparency at $5{S}_{1/2}\ensuremath{\rightarrow}5{P}_{3/2}\ensuremath{\rightarrow}5{D}_{5/2}$ two-photon transition in rubidium vapor. These transitions realize inverted $Y$ model which combines $\ensuremath{\Lambda}$ ladder systems. Strong nonlinearity allowing for large rotation angles a probe beam tuned to $S\ensuremath{\rightarrow}P$ was obtained by creation...