✦ LIBER ✦
Threshold reduction induced by silica nanoparticledispersed active layer in diode-pumped microcavity dye laser
✍ Scribed by H. Matsuura; M. Fukuda; H. Sakata
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 300 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1612-2011
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✦ Synopsis
We report a vertical microcavity dye laser consisting of a polymeric active random layer doped with silica nanoparticles whose diameters are approximately 100 nm. Pumped by an InGaN-based blue-violet laser diode with pulse duration of 3 ns, single mode laser oscillation was obtained at a wavelength of 530 nm. The threshold pump power decreased from 70 mW/pulse to 49 mW/pulse by adding nanoparticles to the active layer. We found an optimum particle density of 2×10 13 cm -3 by measuring threshold pump power to change depending on the particle density in the activity layer.
Intensity, arb. units