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

V. Reboud, J. Romero-Vivas, P. Lovera, N. Kehagias, T. Kehoe, G. Redmond, C. M. Sotomayor Torres

    Research output: Contribution to journalArticleResearchpeer-review

    30 Citations (Scopus)


    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/mm 2 was achieved in a defect-free photonic crystal thus showing the suitability of nanoimprint lithography to produce cost-efficient optically pumped lasers. © 2013 American Institute of Physics.
    Original languageEnglish
    Article number073101
    JournalApplied Physics Letters
    Issue number7
    Publication statusPublished - 18 Feb 2013


    Dive into the research topics of 'Lasing in nanoimprinted two-dimensional photonic crystal band-edge lasers'. Together they form a unique fingerprint.

    Cite this