All-diode-laser ultra-violet absorption spectroscopy and temporal gas correlation spectroscopy

Summary, in English

Here, we present a scheme producing UV radiation around 302 nm by sum-frequency generation in beta-barium borate employing a blue and a near-infrared diode laser. The diode-laser-based spectrometer has a mode-hop-free tuning range of 50 GHz and can be used for high-resolution spectroscopic detection of sulfur dioxide. Differential measurements of several sulfur dioxide gas concentrations, at low pressure as well as at ambient atmospheric pressure, are demonstrated. A particularly interesting aspect of the mixing scheme, is that the near-infrared and blue radiation can be tuned to absorption features of water and nitrogen dioxide, respectively

• Author: Mikael Sjöholm; Gabriel Somesfalean; Linda Persson; G Hong; Z Zhang; Sune Svanberg
• Department/s: Atomic Physics
• Publishing year: 2005
• Language: English
• Pages: 443-443
• Publication/Series: 2005 Conference on Lasers and Electro-Optics Europe
• Links: http://dx.doi.org/10.1109/CLEOE.2005.1568221
• Document type: Conference paper
• Publisher: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Topic: Atom and Molecular Physics and Optics
• Keywords: ambient atmospheric pressure; sulfur dioxide gas concentration; high-resolution spectroscopic detection; mode-hop-free tuning range; diode-laser-based spectrometer; near-infrared diode laser; beta-barium borate; sum-frequency generation; UV radiation; all-diode-laser ultra-violet absorption spectroscopy; temporal gas correlation spectroscopy; blue radiation; water; nitrogen dioxide; BBO; SO₂; NO₂; BaB2O4
• Conference name: 2005 Conference on Lasers and Electro-Optics Europe
• Conference date: 2005-06-12 - 2005-06-17
• Conference place: Munich, Germany
• Status: Published
• ISBN/ISSN/Other: ISBN: 0-7803-8974-3