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

Yue Wang, Georgios Tsiminis, Alexander L. Kanibolotsky, Peter J. Skabara, Ifor D W Samuel, Graham A. Turnbull*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 - 1 Jan 2013

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