Start Staff Former staff members

Lasing in nanoimprinted two-dimensional photonic crystal band-edge lasers

Research Area: Plasmonics and photonics Year: 2013
Type of Publication: Article Keywords: photonic crystals, lasers
Authors:
  • V. Roboud
  • Javier Romero Vivas
  • P. Lovera
  • N. Kehagias
  • T. Kehoe
  • G. Redmond
  • C. M. Sotomayor Torres
Journal: Appl. Phys. Lett. Volume: 102
Pages: 073101
Month: February
BibTex:
Note:
The following article appeared in Applied Physics Letters Vol.102, Issue 7) and may be found at http://apl.aip.org/resource/1/applab/v102/i7/p073101_s1
Abstract:
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 Γ 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 Γ points. A low laser threshold of 3 μJ/mm2 was achieved in a defect-free photonic crystal thus showing the suitability of nanoimprint lithography to produce cost-efficient optically pumped lasers.
Comments:
Copyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
[Bibtex] [RIS]