Jd. Weinstein et al., SPECTROSCOPY OF BUFFER-GAS COOLED VANADIUM MONOXIDE IN A MAGNETIC TRAPPING FIELD, The Journal of chemical physics, 109(7), 1998, pp. 2656-2661
Spectroscopy of buffer-gas cooled vanadium monoxide (VO) is performed
in the presence of a magnetic trapping field and at low field. VO is c
reated via laser ablation. A helium buffer gas, chilled by a dilution
refrigerator, cools 10(12) VO molecules to 1.8+/-0.2 K within 10 ms. T
he measured rotational temperature is 1.5+/-0.8 K. Spatially resolved
Zeeman spectra allow the magnetic broadening terms of several optical
transitions to be determined. The density of VO decays with a characte
ristic time of 60 ms, thus precluding the observation of trapping. (C)
1998 American Institute of Physics.