Nanoimprinted polymer lasers with threshold below 100 W/cm2 using mixed-order distributed feedback resonators

Yue Y. Wang, Georgios G. Tsiminis, Alexander L. A.L. Kanibolotsky, Peter J. P.J. Skabara, Ifor D W I.D.W. Samuel, Graham A. G.A. Turnbull

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29 Citations (Scopus)

Abstract

Organic semiconductor lasers were fabricated by UVnanoimprint lithography with thresholds as low as 57 W/cm2 under 4 ns pulsed operation. The nanoimprinted lasers employed mixed-order distributed feedback resonators, with second-order gratings surrounded by first-order gratings, combined with a light-emitting conjugated polymer. They were pumped by InGaN LEDs to produce greenemitting lasers, with thresholds of 208 W/cm2 (102 nJ/pulse). These hybrid lasers incorporate a scalable UV-nanoimprint lithography process, compatible with high-performance LEDs, therefore we have demonstrated a coherent, compact, low-cost light source.
Original languageEnglish
Pages (from-to)14362-14367
Number of pages6
JournalOptics Express
Volume21
Issue number12
DOIs
Publication statusPublished - 17 Jun 2013

Keywords

  • organic semiconductor lasers
  • polymer lasers
  • UV-nanoimprint lithography
  • InGaN light-emitting diodes

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