Ultraviolet laser spectroscopy of aluminum atoms in hollow-cathode lamp

Abstract

We report precision measurement of aluminum atoms ${}^2{P}_{1/2}-{}^2{S}_{1/2}$ transition at 394 nm and ${}^2{P}_{3/2}-{}^2{S}_{1/2}$ transition at 396 nm in a hollow-cathode lamp (HCL). Both absorption spectroscopy and saturated absorption spectroscopy (SAS) are performed. From the absorption spectroscopy the Doppler linewidth is estimated to be 2.6 GHz. The SAS spectroscopy is analyzed based on the velocity-changing-effect model. With a frequency comb calibrated wavemeter, the frequencies of ${}^2{P}_{1/2},F=3-{}^2{S}_{1/2},F=2$ transition and ${}^2{P}_{3/2},F=4-{}^2{S}_{1/2},F=3$ transition are measured to be 759.905401(10) THz and 756.547403(10) THz, respectively. The hyperfine structure constants of aluminum atoms are determined and compared with previously reported measurement results and theoretical calculation. Reasonable agreement is found for the magnetic dipole constant (A constant), while the electric quadrupole constant (B constant) has a large deviation.

arXiv comment11 pages, 5 figures

References in corpus (13)

• The elemental composition of the Sun I. The intermediate mass elements Na to Ca
• Observation of the 1S0 - 3P0 clock transition in 27Al+
• The SDSS-III APOGEE Spectral Line List for H-band Spectroscopy
• Isotope-selective photo-ionization for calcium ion trapping
• Non-LTE aluminium abundances in late-type stars
• Running vacuum in the Universe and the time variation of the fundamental constants of Nature
• Thermal noise limited higher-order mode locking of a reference cavity
• Evolution of the fine-structure constant in runaway dilaton models
• High-resolution abundance analysis of red giants in the metal-poor bulge globular cluster HP~1
• High-resolution abundance analysis of HD 140283
• Looking for imprints of the first stellar generations in metal-poor bulge field stars
• Frequency Stabilization of a 369 nm Diode Laser by Nonlinear Spectroscopy of Ytterbium Ions in a Discharge
• Tunable frequency-stabilization of UV laser using a Hallow-Cathode Lamp of atomic thallium

Cited by in corpus (1)

• Artifact side peaks in saturated absorption spectroscopy caused by inappropriate lock-in amplification