QUENCHING OF HELIUM AFTERGLOW BY INFRARED PHOTONS
- 15 August 1969
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 15 (4), 113-114
- https://doi.org/10.1063/1.1652926
Abstract
The visible afterglow radiation from low‐pressure weakly ionized helium exhibits a partial quenching due to absorption of infrared photons (0.11–0.14 eV). The helium sample is placed in the cavity of a Q‐switched CO2 laser and studied at gas temperatures in the range from 77 to 300°K. The partial quenching appears to originate from photon‐induced change of population of a state or states of a neutral or ionic helium molecule.Keywords
This publication has 4 references indexed in Scilit:
- Evidence of Low-Binding-Energy Electrons in a Low-Temperature Helium AfterglowPhysical Review Letters, 1968
- Evidence of the Existence of an He3+ IonThe Journal of Chemical Physics, 1968
- Polarization of Neutrons from the and ReactionsPhysical Review B, 1965
- Mobilities and Reaction Rates of Ions in HeliumPhysical Review B, 1965