Table of Contents
Laser Chemistry
Volume 15 (1995), Issue 2-4, Pages 221-228

Laser Spectroscopy of Neutral Atoms in Superfluid Helium: New Environment For Spectroscopy and Chemistry

The Institute of Physical and Chemical Research (RIKEN) Wako, Saitama 351-01, Japan

Received 18 April 1994

Copyright © 1995 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The optical spectra of neutral atoms are studied in superfluid helium (HeII). Neutral atoms are dispersed into HeII by laser ablation of solid samples immersed in HeII. Absorption and emission spectra of dispersed atoms are studied with pulsed dye lasers. Ytterbium is found to be a typical bubble atom which resides in a bubble-like cavity formed by a strong repulsive force against the surrounding He atoms. Resonance quenching of LIF by accidental overlap of the resonant induced emission and broad absorption lines is observed.