Lasing in nanoimprinted two-dimensional photonic crystal band-edge lasers
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Sotomayor Torres, Clivia M.
We demonstrate optically pumped polymer band-edge lasers based on a two-dimensional photonic crystal slab fabricated by nanoimprint lithography (NIL). Lasing was obtained at the photonic band-edge, where the light exhibits a low group velocity at the C point of the triangular lattice photonic crystal band structure. The active medium was composed of a dye chromophore-loaded polymer matrix directly patterned in a single step by nanoimprint lithography. Plane-wave and finite difference time domain algorithms were used to predict experimental lasing frequencies and the lasing thresholds obtained at different C points. A low laser threshold of 3 mu J/mm(2) was achieved in a defect-free photonic crystal thus showing the suitability of nanoimprint lithography to produce cost-efficient optically pumped lasers. (C) 2013 American Institute of Physics. (http://dx.doi.org/10.1063/1.4790646)
Optical gain , Polymer , Lithography , Polymers , Photonic crystals , Nanolithography , Optical polymers , Optical fabrication
Reboud, V., Romero-Vivas, J., Lovera, P., Kehagias, N., Kehoe, T., Redmond, G. and Torres, C. M. S. (2013) 'Lasing in nanoimprinted two-dimensional photonic crystal band-edge lasers', Applied Physics Letters, 102(7), pp. 073101. doi: 10.1063/1.4790646
© 2013 American Institute of Physics.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Reboud, V., Romero-Vivas, J., Lovera, P., Kehagias, N., Kehoe, T., Redmond, G. and Torres, C. M. S. (2013) 'Lasing in nanoimprinted two-dimensional photonic crystal band-edge lasers', Applied Physics Letters, 102(7), pp. 073101 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.4790646