Publications (12)
Measurement of diffusion coefficients of francium and rubidium in yttrium based on laser spectroscopy
C. de Mauro, R. Calabrese, L. Corradi +9
We report the first measurement of the diffusion coefficients of francium and rubidium ions implanted in a yttrium foil. We developed a methodology, based on laser spectroscopy, wh…
All optical sensor for automated magnetometry based on Coherent Population Trapping
J. Belfi, G. Bevilacqua, V. Biancalana +2
An automated magnetometer suitable for long lasting measurement under stable and controllable experimental conditions has been implemented. The device is based on Coherent Populati…
Cs CPT magnetometer for cardio-signal detection in unshielded environment
J. Belfi, G. Bevilacqua, V. Biancalana +3
We present first, encouraging results obtained with an experimental apparatus based on Coherent Population Trapping and aimed at detecting biological (cardiac) magnetic field in ma…
A room-temperature alternating current susceptometer - Data analysis, calibration, and test
M. Alderighi, G. Bevilacqua, V. Biancalana +3
An AC susceptometer operating in the range of 10 Hz to 100 kHz and at room temperature is designed, built, calibrated and used to characterize the magnetic behaviour of coated magn…
High-Precision Measurement of the Laser-Trapping Frequencies for Fr Atoms
S. Sanguinetti, R. Calabrese, L. Corradi +9
We present the accurate measurement of the frequency of the laser-trapping transition for three francium isotopes. Our approach is based on an interferometric comparison to…
Laser driven self-assembly of shape-controlled potassium nanoparticles in porous glass
L. Marmugi, E Mariotti, A. Burchianti +3
We observe growth of shape-controlled potassium nanoparticles inside a random network of glass nanopores, exposed to low-power laser radiation. Visible laser light plays a dual rol…
Ultrashort Laser-pulse Diagnostics for Detection of Ordering within an Ion beam
R. Calabrese, V. Guidi, P. Lenisa +3
A novel diagnostic method to detect ordering within one-dimensional ion beams in a storage ring is presented. The ions are simultaneously excited by a ultrashort pulsed laser ($\si…
Stroboscopic Laser Diagnostics for Detection of Ordering in One-Dimensional Ion beam
R. Calabrese, V. Guidi, P. Lenisa +3
A novel diagnostic method for detecting ordering in one-dimensional ion beams is presented. The ions are excited by a pulsed laser at two different positions along the beam and flu…
Larmor frequency dressing by an anharmonic transverse magnetic field
G. Bevilacqua, V. Biancalana, Y. Dancheva +1
We present a theoretical and experimental study of spin precession in the presence of both a static and an orthogonal oscillating magnetic field, which is nonresonant, not harmonic…
A new class of sum rules for products of Bessel functions
G. Bevilacqua, V. Biancalana, Y. Dancheva +2
In this paper we derive a new class of sum rules for products of the Bessel functions of first kind. Using standard algebraic manipulations we extend some of the well known propert…
Dual channel self-oscillating optical magnetometer
J. Belfi, G. Bevilacqua, V. Biancalana +4
We report on a two-channel magnetometer based on nonlinear magneto-optical rotation in a Cs glass cell with buffer gas. The Cs atoms are optically pumped and probed by free running…
Saturated absorption spectroscopy: elimination of crossover resonances by use of a nanocell
A. Sargsyan, D. Sarkisyan, A. Papoyan +6
It is demonstrated that velocity selective optical pumping/saturation resonances of reduced absorption in a Rb vapor nanocell with thickness \textit{L=} , 2, and 3 (res…