Fluorescence branching ratios and magnetic tuning of the visible spectrum of SrOH

Abstract

The magnetic tuning of the low rotational levels in the Xsigma+(0,0,0), Api(0,0,0), and Bsigma+ (0,0,0) electronic states of strontium hydroxide, SrOH, have been experimentally investigated using high resolution optical Zeeman spectroscopy of a cold molecular beam sample. The observed Zeeman shifts and splittings are successfully modeled using a traditional effective Hamiltonian approach to account for the interaction between the Api and Bsigma+ states. The determined magnetic g-factors for the Xsigma+, Api , and Bsigma+ states are compared to those predicted by perturbation theory. The dispersed fluorescence resulting from laser excitation of rotationally resolved branch features of the Bsigma+ (0,0,0)<Xsigma+(0,0,0) Api(0,0,0)< Xsigma+(0,0,0) transitions have been recorded and analyzed. The measured fluorescence branching ratios are compared with Franck-Condon calculations. The required bending motion wave functions are derived using a discrete variable representation (DVR) method. Implications for laser slowing and magneto-optical trapping experiments for SrOH are described.

arXiv commentArticle: 37 pages of text; 4 tables and 9 figures; Supplemental material: 4 tables and description of DFT calulation

References in corpus (10)

• Magneto-optical trapping of a diatomic molecule
• Quantum Computation with Vibrationally Excited Molecules
• Sisyphus Laser Cooling of a Polyatomic Molecule
• Radio Frequency Magneto-Optical Trapping of CaF with High Density
• Radiative force from optical cycling on a diatomic molecule
• High-flux beam source for cold, slow atoms or molecules
• Laser radiation pressure slowing of a molecular beam
• Polyatomic candidates for cooling of molecules with lasers from simple theoretical concepts
• Magneto-optical trapping forces for atoms and molecules with complex level structures
• Radiation Pressure Force from Optical Cycling on a Polyatomic Molecule

Cited by in corpus (10)

• Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
• Enhanced Sensitivity to Ultralight Bosonic Dark Matter in the Spectra of the Linear Radical SrOH
• Determination of CaOH and CaOCH${}_3$ vibrational branching ratios for direct laser cooling and trapping
• Accurate prediction and measurement of vibronic branching ratios for laser cooling linear polyatomic molecules
• Franck-Condon tuning of optical cycling centers by organic functionalization
• Establishing a nearly closed cycling transition in a polyatomic molecule
• Observation and laser spectroscopy of ytterbium monomethoxide, YbOCH${}_3$
• Vibronic branching ratios for nearly-closed rapid photon cycling of SrOH
• Emulating optical cycling centers in polyatomic molecules
• Intensity-borrowing mechanisms pertinent to laser cooling of linear polyatomic molecules