Optical Zeeman Spectroscopy of the (0, 0) A 2Π-X 2Σ+ Band System of Magnesium Hydride

Posted on May 30, 2014

The Zeeman effect on lines in the (0, 0) A 2Π-X 2Σ+ band system of a cold molecular beam sample of magnesium hydride, MgH, has been recorded at high resolution (FWHM 60 MHz) and analyzed. The lines associated with the lowest rotational levels are detected for the first time. The field-free spectrum was analyzed to produce spectroscopic parameters for the A 2Π (v = 0) state. The experimentally observed magnetic tuning of the low-rotational...

Read More

The permanent electric dipole moment of thorium sulfide, ThS

Posted on May 30, 2014

Numerous rotational lines of the {18.26}1-X 1Σ+ band system of thorium sulfide, ThS, were recorded near 547.6 nm at a resolution of approximately 30 MHz. Measurements were made under field-free conditions, and in the presence of a static electric field. The field-free spectrumwas analyzed to produce rotational and Λ-doubling parameters. The Stark shifts induced by theelectric field were analyzed to determine permanent electric dipole...

Read More

Analysis of hyperfine structure in the 0–0 band of the [17.6]2.5–X2.5 transition of iridium monoxide, IrO

Posted on May 30, 2014

Laser induced fluorescence spectra of the [17.6]2.5–X2.5 0–0 band of iridium monoxide, IrO, have been obtained at high resolution (<40 MHz). The hyperfine structure due to 193Ir (I = 3/2) and 191Ir (I = 3/2) is well resolved enabling determination of magnetic (h5/2) and nuclear electric quadrupole (eQq0) hyperfine parameters for the [17.6]2.5 (v = 0) and X2.5 (v = 0) states. The dominant configuration of the ground state is determined by...

Read More

The pure rotational spectrum of ruthenium monocarbide, RuC, and relativistic ab initio predictions

Posted on May 30, 2014

The J = 1 ← J = 0 and J = 2 ← J = 1 rotational transitions of ruthenium monocarbide, RuC, have been recorded using the separated field pump/probe microwave optical double resonance technique and analyzed to determine the fine and hyperfine parameters for the X 1Σ+ state. The101Ru(I = 5/2) electric quadrupole parameter, eq 0 Q, and nuclear spin-rotation interactionparameter, CeffI , were determined to be 433.19(8) MHz and −0.049(6) MHz,...

Read More

Hyperfine Interactions and Electric Dipole Moments in the [16.0]1.5(v = 6), [16.0]3.5(v = 7), and X2Δ5/2 States of Iridium Monosilicide, IrSi

Posted on May 30, 2014

The (6,0)[16.0]1.5–X2Δ5/2 and (7,0)[16.0]3.5–X2Δ5/2 bands of IrSi have been recorded using high-resolution laser-induced fluorescence spectroscopy. The field-free spectra of the 191IrSi and 193IrSi isotopologues were modeled to generate a set of fine, magnetic hyperfine, and nuclear quadrupole hyperfine parameters for the X2Δ5/2(v = 0), [16.0]1.5(v = 6), and [16.0]3.5 (v = 7) states. The observed optical Stark shifts for the 193IrSi and 191IrSi...

Read More

Molecular-Beam Optical Stark and Zeeman Study of the [17.8]0+–X1Σ+ (0,0) Band System of AuF

Posted on May 30, 2014

The [17.8]0+–X1Σ+ (0,0) band of gold monofluoride, AuF, has been recorded at a resolution of 40 MHz both field free and in the presence of a static electric and magnetic field. The observed Stark shifts were analyzed to determine the permanent electric dipole moment, μel, of 2.03 ± 0.05 D and 4.13 ± 0.02 D, for the [17.8]0+(v = 0) and X1Σ+(v = 0) states, respectively. The small magnetic tuning observed for the [17.8]0+(v = 0) state is...

Read More