L. Gianfrani
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View article: First operation of the FAMU experiment at the RIKEN-RAL high intensity muon beam facility
First operation of the FAMU experiment at the RIKEN-RAL high intensity muon beam facility Open
The FAMU experiment, supported and funded by the Italian Institute of Nuclear Physics (INFN) and by the Science and Technology Facilities Council (STFC), aims to perform the first measurement of the ground-state hyperfine splitting (1S-hfs…
View article: Isotope shift spectroscopy in mercury vapors: a valid alternative to ytterbium for new physics search
Isotope shift spectroscopy in mercury vapors: a valid alternative to ytterbium for new physics search Open
Precision isotope shift metrology in the deep-UV region has been performed for all bosonic isotopes of mercury with a zero nuclear spin, by using the technique of frequency-comb referenced, wavelength-modulated, saturated absorption spectr…
View article: Measurement of the muon transfer rate from muonic hydrogen to carbon in the FAMU experiment
Measurement of the muon transfer rate from muonic hydrogen to carbon in the FAMU experiment Open
View article: The X-rays detector system of the FAMU Experiment for the measurement of the muon transfer rate to carbon
The X-rays detector system of the FAMU Experiment for the measurement of the muon transfer rate to carbon Open
View article: New beyond-Voigt line-shape profile recommended for the HITRAN database
New beyond-Voigt line-shape profile recommended for the HITRAN database Open
Parameters associated with the collisional perturbation of spectral lines are essential for modeling the absorption of electromagnetic radiation in gas media. The HITRAN molecular spectroscopic database provides these parameters, although …
View article: Long-Term performance of a Mid-IR Laser system for Muonic Hydrogen Spectroscopy: Insights from the FAMU Experiment
Long-Term performance of a Mid-IR Laser system for Muonic Hydrogen Spectroscopy: Insights from the FAMU Experiment Open
View article: Measurement of the Muon Transfer Rate from Muonic Hydrogen to Carbon in the Famu Experiment
Measurement of the Muon Transfer Rate from Muonic Hydrogen to Carbon in the Famu Experiment Open
View article: The muon beam monitor for the FAMU experiment: design, simulation, test, and operation
The muon beam monitor for the FAMU experiment: design, simulation, test, and operation Open
FAMU is an INFN-led muonic atom physics experiment based at the RIKEN-RAL muon facility at the ISIS Neutron and Muon Source (United Kingdom). The aim of FAMU is to measure the hyperfine splitting in muonic hydrogen to determine the value o…
View article: Demonstration of record sensitivity for water vapor detection by means of comb-locked cavity ring-down spectroscopy
Demonstration of record sensitivity for water vapor detection by means of comb-locked cavity ring-down spectroscopy Open
We report on the development, characterization, and test of a comb-locked cavity ring-down spectrometer (CL-CRDS) operating in the spectral region around 1.39 µm. The system is based on the use of a hemispherical optical resonator with a f…
View article: A mid-IR laser source for muonic hydrogen spectroscopy: The FAMU laser system
A mid-IR laser source for muonic hydrogen spectroscopy: The FAMU laser system Open
A pulsed, tunable, narrow linewidth mid-infrared (mid-IR) laser radiation source was developed to meet the needs of the FAMU project (Fisica Atomi MUonici). The main goal of this experiment is to measure the hyperfine splitting of the grou…
View article: Comb-Referenced Doppler-Free Spectrometry of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Hg</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>200</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Hg</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>202</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> Intercombination Line at 254 nm
Comb-Referenced Doppler-Free Spectrometry of the and Intercombination Line at 254 nm Open
We report on precision spectroscopy of the 6s^{2} ^{1}S_{0}→6s6p ^{3}P_{1} intercombination line of mercury in the deep ultraviolet, by means of a frequency-comb referenced, wavelength-modulated, saturated absorption technique. This method…
View article: Advances in cavity-enhanced methods for high precision molecular spectroscopy and test of fundamental physics
Advances in cavity-enhanced methods for high precision molecular spectroscopy and test of fundamental physics Open
Cavity-enhanced spectroscopic techniques are highly sensitive laser-based methods for interrogating the atomic and molecular constituents of any gaseous medium that is confined into an optical resonator. A first advantage over conventional…
View article: Comb-locked deep-ultraviolet laser system for precision mercury spectroscopy
Comb-locked deep-ultraviolet laser system for precision mercury spectroscopy Open
Doppler-broadening gas thermometry is extended to the deep-ultraviolet domain using a comb-locked laser frequency chain, expressly developed for precision spectroscopy of mercury vapors at the wavelength of 253.7 nm, in coincidence with th…
View article: Status of the detector setup for the FAMU experiment at RIKEN-RAL for a precision measurement of the Zemach radius of the proton in muonic hydrogen
Status of the detector setup for the FAMU experiment at RIKEN-RAL for a precision measurement of the Zemach radius of the proton in muonic hydrogen Open
The FAMU experiment at RIKEN-RAL is a muonic atom experiment with the aim to determine the Zemach radius of the proton by measuring the 1s hyperfine splitting in muonic hydrogen. The activity of the FAMU Collaboration in the years 2015–202…
View article: Mid-IR narrow bandwidth tuneable laser source for the FAMU experiment
Mid-IR narrow bandwidth tuneable laser source for the FAMU experiment Open
The FAMU (Fisica degli Atomi MUonici) collaboration aims to measure the proton Zemach radius through muonic hydrogen (μ p ) spectroscopy. The experimental setup relies on a custom-developed pulsed mid-IR laser source that can be tuned over…
View article: A Mid-Ir Laser Source for Muonic Hydrogen Spectroscopy: The Famu Laser System
A Mid-Ir Laser Source for Muonic Hydrogen Spectroscopy: The Famu Laser System Open
View article: Status of the detector setup for the FAMU experiment at RIKEN-RAL for a precision measurement of the Zemach radius of the proton in muonic hydrogen
Status of the detector setup for the FAMU experiment at RIKEN-RAL for a precision measurement of the Zemach radius of the proton in muonic hydrogen Open
The FAMU experiment at RIKEN-RAL is a muonic atom experiment with the aim to determine the Zemach radius of the proton by measuring the 1s hyperfine splitting in muonic hydrogen. The activity of the FAMU Collaboration in the years 2015-202…
View article: Dataset related to the publication E. Fasci et al., Sensors and Actuators: A. Physical 362 (2023) 114632 (https://doi.org/10.1016/j.sna.2023.114632)
Dataset related to the publication E. Fasci et al., Sensors and Actuators: A. Physical 362 (2023) 114632 (https://doi.org/10.1016/j.sna.2023.114632) Open
file Allan analysis.xlsx: Allan-Werle deviation analysis of the measured ring down times. From these data a minimum detectable absorption coefficient of 6.5x10^-12 cm^-1 can be inferred, being the ring-down time under vacuum conditions abo…
View article: Dataset related to the publication E. Fasci et al., Sensors and Actuators: A. Physical 362 (2023) 114632 (https://doi.org/10.1016/j.sna.2023.114632)
Dataset related to the publication E. Fasci et al., Sensors and Actuators: A. Physical 362 (2023) 114632 (https://doi.org/10.1016/j.sna.2023.114632) Open
file Allan analysis.xlsx: Allan-Werle deviation analysis of the measured ring down times. From these data a minimum detectable absorption coefficient of 6.5x10^-12 cm^-1 can be inferred, being the ring-down time under vacuum conditions abo…
View article: Water vapor concentration measurements in high purity gases by means of comb assisted cavity ring down spectroscopy
Water vapor concentration measurements in high purity gases by means of comb assisted cavity ring down spectroscopy Open
View article: Dataset of the publication Phys. Chem. Chem. Phys., 2023,25, 23614-23625
Dataset of the publication Phys. Chem. Chem. Phys., 2023,25, 23614-23625 Open
The experimental work was partially done within the project PROMETH2O (EMPIR 20IND06), which received funding from the EMPIR programme co-financed by the Participating States and from the European Unions Horizon 2020 research and innovatio…
View article: Dataset of the publication Phys. Chem. Chem. Phys., 2023,25, 23614-23625
Dataset of the publication Phys. Chem. Chem. Phys., 2023,25, 23614-23625 Open
The experimental work was partially done within the project PROMETH2O (EMPIR 20IND06), which received funding from the EMPIR programme co-financed by the Participating States and from the European Unions Horizon 2020 research and innovatio…
View article: Investigating the Proton Structure: The FAMU Experiment
Investigating the Proton Structure: The FAMU Experiment Open
The exploration of atomic structure has greatly advanced
\nthe progression toward the vision of modern physics. Thus,
\nit is not unexpected that atoms are still being thoroughly
\nstudied, both theoretically and experimentally. Early time…
View article: Dataset related to Figure 2, publication: E. Fasci et al 2023 J. Phys.: Conf. Ser.2439 012017
Dataset related to Figure 2, publication: E. Fasci et al 2023 J. Phys.: Conf. Ser.2439 012017 Open
Data have been acquired by means of a comb-calibrated frequency-stabilized cavity ring-down spectrometer. They represent the absorption spectrum of the 3_(2,2)→2_(2,1) H_2O line, belonging to the nu_1 + nu_3 band, recorded under a continuo…
View article: Dataset related to Figure 2, publication: E. Fasci et al 2023 J. Phys.: Conf. Ser.2439 012017
Dataset related to Figure 2, publication: E. Fasci et al 2023 J. Phys.: Conf. Ser.2439 012017 Open
Data have been acquired by means of a comb-calibrated frequency-stabilized cavity ring-down spectrometer. They represent the absorption spectrum of the 3_(2,2)→2_(2,1) H_2O line, belonging to the nu_1 + nu_3 band, recorded under a continuo…
View article: Water Vapor Concentration Measurements in High Purity Gases by Means of Comb Assisted Cavity Ring Downspectroscopy
Water Vapor Concentration Measurements in High Purity Gases by Means of Comb Assisted Cavity Ring Downspectroscopy Open
View article: A Mid-Ir Laser Source for Muonic Hydrogen Spectroscopy: The Famu Laser System
A Mid-Ir Laser Source for Muonic Hydrogen Spectroscopy: The Famu Laser System Open
View article: Comb-assisted cavity ring-down spectroscopy for ultra-sensitive traceable measurements of water vapour in ultra-high purity gases
Comb-assisted cavity ring-down spectroscopy for ultra-sensitive traceable measurements of water vapour in ultra-high purity gases Open
We report on the development of a comb-assisted cavity ring-down spectrometer for trace water mole fraction determinations in high purity gases. By tuning the laser light in coincidence with a H 2 O absorption line at 1.3946 µ m, we were a…
View article: Comb-assisted mercury spectroscopy in the deep-ultraviolet: towards the development of a new primary thermometer
Comb-assisted mercury spectroscopy in the deep-ultraviolet: towards the development of a new primary thermometer Open
We report on the development of a new primary thermometer based upon high-precision spectroscopy of mercury vapors in the deep-ultraviolet region for the practical realization of the new kelvin. The line profile of the (6 s 2 ) 1 S 0 → (6 …
View article: On the <sup>12</sup>C<sub>2</sub>H<sub>2</sub> near-infrared spectrum: absolute transition frequencies and an improved spectroscopic network at the kHz accuracy level
On the <sup>12</sup>C<sub>2</sub>H<sub>2</sub> near-infrared spectrum: absolute transition frequencies and an improved spectroscopic network at the kHz accuracy level Open
The absolute frequency of several C 2 H 2 rovibrational transitions, carefully selected by the theory of spectroscopic network, has been measured with an accuracy of 15 kHz. Based on the MARVEL procedure, para - and ortho -energy levels we…