The Tunable, Narrow-Bandwidth Excimer Laser, the New Workhorse for Photochemistry in the UV and VUV. Issue 1 (1983)

• Record Type: Journal Article
• Authors: Hohla, K.; Mückenheim, W.; Basting, D.
• Is Part Of: Laser chemistry. Volume 3:Issue 1/6(1983)
• Page Start: 307
• Page End: 310
• Publication Date: 1983
• Subjects: Lasers in chemistry -- Periodicals; 542.8
• DOI: 10.1155/LC.3.307
• Languages: English
• ISSNs: 0278-6273

Abstract

Abstract : Excimer lasers are powerful sources of radiation in the UV, providing several laser lines between 157 and 353 nm. The excimer laser transition is bound-free, and thus the emitted wavelengths are broad-band (up to 200 cm −1 ). In addition the high gain (0.15 cm −1 ) of the laser gas causes a rather large divergence (>1 mrad) in conventional excimer lasers. A new excimer laser concept is described which improves the spectral brightness in terms of watt/(rad × bandwidth) by three orders of magnitude. This allows, through non-linear processes such as Raman shifting the fundamental output and four-wave-mixing in gases, the generation of new laser lines in the UV and VUV.