High-resolution infrared spectroscopy of solid hydrogen: The tetrahexacontapole-induced ΔJ=6 transitions
Abstract
Weak new features in the absorption spectrum of solid hydrogen were observed by high-resolution infrared spectroscopy, and assigned as transitions with total change in angular momentum of ΔJ=6. The tetrahexacontapole(64-pole)-induced rotational transition W0(0) was studied with a difference frequency laser spectrometer and found to be very narrow, with a linewidth of 0.003 cm-1 HWHM in 99.8% parahydrogen. Frequencies, linewidths, and integrated absorption strengths were measured for several pure rotational and rotation-vibration transitions from 1800 to 7000 cm-1, and the tetrahexacontapole moment was determined.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 1989
- DOI:
- 10.1103/PhysRevLett.62.32
- Bibcode:
- 1989PhRvL..62...32O
- Keywords:
-
- Absorption Spectra;
- Electron Transitions;
- High Resolution;
- Infrared Spectroscopy;
- Metallic Hydrogen;
- Angular Momentum;
- Fourier Transformation;
- Impurities;
- Infrared Lasers;
- Phase Transformations;
- Vibrational Spectra;
- Atomic and Molecular Physics;
- 33.70.-w;
- 33.20.Ea;
- 78.30.Hv;
- Intensities and shapes of molecular spectral lines and bands;
- Infrared spectra;
- Other nonmetallic inorganics