A laser deflection technique for sensitive measurements of a reduced-density channel in neutral gas
- 1 April 1982
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 40 (7), 576-578
- https://doi.org/10.1063/1.93185
Abstract
The radial profile of neutral gas density has been measured for a reduced-density channel in 2.7-kPa (20 Torr) air produced by an electrical discharge. Deflection by the channel of a He-Ne laser is measured by a sensitive position detector, and the density profile is unfolded using an Abel inversion. Density changes of ∼1017/cm3 in air can be measured by this means.Keywords
This publication has 6 references indexed in Scilit:
- Photothermal deflection spectroscopy and detectionApplied Optics, 1981
- Propagation of light ions in a plasma channelApplied Physics Letters, 1980
- Particle beam weapons—a technical assessmentNature, 1980
- Atmospheric Nitrogen Fixation by LightningJournal of the Atmospheric Sciences, 1980
- Two-Wavelength Holographic Interferometry of Partially Ionized PlasmasPhysics of Fluids, 1970
- Optical Refractivity of High-Temperature Gases. I. Effects Resulting from Dissociation of Diatomic GasesPhysics of Fluids, 1959