We report on all-optical modulation and switching of light-guided random laser emission in optically pumped dye-doped nematic liquid crystals, whereby a continuous-wave near-infrared beam at 1.064 micrometer, non-resonant with the medium and collinear with the pump source, forms a reorientational spatial soliton. Such soliton-assisted cavity-less laser exhibits a beam character with directional emission and smooth transverse profile and can be either switched-on or made more efficient by injecting a mW input beam. We achieve energy amplifications of laser emission in excess of 18 dB by injecting a 6 mW near-infrared beam.
Perumbilavil, S., Kauranen, M., Assanto, G. (2018). Near-Infrared Switching of Light-Guided Random Laser. IEEE PHOTONICS JOURNAL, 10(5), 1-1 [10.1109/JPHOT.2018.2870739].
Near-Infrared Switching of Light-Guided Random Laser
assanto, g
Conceptualization
2018-01-01
Abstract
We report on all-optical modulation and switching of light-guided random laser emission in optically pumped dye-doped nematic liquid crystals, whereby a continuous-wave near-infrared beam at 1.064 micrometer, non-resonant with the medium and collinear with the pump source, forms a reorientational spatial soliton. Such soliton-assisted cavity-less laser exhibits a beam character with directional emission and smooth transverse profile and can be either switched-on or made more efficient by injecting a mW input beam. We achieve energy amplifications of laser emission in excess of 18 dB by injecting a 6 mW near-infrared beam.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
