Blue, surface-emitting, distributed feedback polyfluorene lasers
Heliotis, G.; Xia, R.; Bradley, D. D. C.; et al.Turnbull, G. A.; Samuel, I. D. W.; Andrew, P.; Barnes, William L.
Date: 9 September 2003
Journal
Applied Physics Letters
Publisher
American Institute of Physics
Publisher DOI
Abstract
We report the fabrication of optically-pumped solid-state distributed feedback lasers utilizing two blue-light-emitting semiconducting polyfluorenes as gain media. The lasers were readily fabricated by solution deposition of thin polymer films on top of gratings etched into fused silica substrates. A compact Nd:YVO4 microchip laser was ...
We report the fabrication of optically-pumped solid-state distributed feedback lasers utilizing two blue-light-emitting semiconducting polyfluorenes as gain media. The lasers were readily fabricated by solution deposition of thin polymer films on top of gratings etched into fused silica substrates. A compact Nd:YVO4 microchip laser was used as the pump source for the two polymers studied, and lasing was achieved at 455 and 465 nm. Low threshold energies, ≥ 4 nJ per pulse, were obtained. The emission characteristics of the lasers are described along with the results of additional experiments that investigate in more detail the effect of the grating microstructure on polymer light emission.
Physics and Astronomy
Faculty of Environment, Science and Economy
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