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Scientific article
Open access
English

Cooperative effect of ultraviolet and near-infrared beams in laser-induced condensation

Published inApplied physics letters, vol. 103, no. 26, 264103
Publication date2014
Abstract

We demonstrate the cooperative effect of near infrared (NIR) and ultraviolet (UV) beams on laser-induced condensation. Launching a UV laser after a NIR pulse yields up to a 5-fold increase in the production of nanoparticles (25–300 nm) as compared to a single NIR beam. This cooperative effect exceeds the sum of those from the individual beams and occurs for delays up to 1 μs. We attribute it to the UV photolysis of ozone created by the NIR pulses. The resulting OH radicals oxidize NO2 and volatile organic compounds, producing condensable species.

Keywords
  • Ozone
  • Ultraviolet light
  • Nanoparticles
  • Condensation
  • Photodissociation
Citation (ISO format)
MATTHEWS, Mary et al. Cooperative effect of ultraviolet and near-infrared beams in laser-induced condensation. In: Applied physics letters, 2014, vol. 103, n° 26, p. 264103. doi: 10.1063/1.4857895
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Article (Published version)
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ISSN of the journal0003-6951
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Creation06/03/2014 9:26:00 AM
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