New continua for absorption spectroscopy from 40 to 2000 Å
- 1 March 1978
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 2 (3) , 72-74
- https://doi.org/10.1364/ol.2.000072
Abstract
The spectra of plasmas produced by focusing the output of a Q-switched ruby laser (output 1 J) on the rare-earth metals have been studied. From samarium (Z = 62) to ytterbium (Z = 70), strong quasi-uniform continua are emitted in the wavelength range 40–2000 Å. Line emission from the target elements is absent over most of this wavelength region, particularly below about 600 Å. The use of these continua as simple, reliable background sources for absorption spectroscopy in the vacuum-ultraviolet and soft x-ray region down to 40 Å is demonstrated.Keywords
This publication has 8 references indexed in Scilit:
- Doubly Excited Autoionization Resonances in the Absorption Spectrum ofFormed in a Laser-Produced PlasmaPhysical Review Letters, 1977
- Vacuum-uv radiation of laser-produced plasmasJournal of the Optical Society of America, 1973
- The cn1Πuand cn'1Σu+Rydberg states of N2: high resolution studiesJournal of Physics B: Atomic and Molecular Physics, 1972
- Extreme-Ultraviolet Continuum Absorption by a Laser-Generated Aluminum PlasmaPhysical Review Letters, 1970
- Absorption Structure Near theEdge of Argon GasPhysical Review Letters, 1968
- VACUUM ULTRAVIOLET RADIATION FROM PLASMAS FORMED BY A LASER ON METAL SURFACESApplied Physics Letters, 1966
- Newly Observed Structure in the Photoionization Continua of Kr and Xe below 160 ÅApplied Optics, 1965
- Method of Increasing the Speed of a Grazing-Incidence SpectrographJournal of the Optical Society of America, 1959