Nanoimprinted polymer lasers with threshold below 100 W/cm2 using mixed-order distributed feedback resonators.
Nanoimprinted polymer lasers with threshold below 100 W/cm2 using mixed-order distributed feedback resonators.
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DOI：
10.1364/oe.21.014362
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发表时间：
2013-06
期刊：
影响因子：
3.8
通讯作者：
Yue Wang;G. Tsiminis;A. Kanibolotsky;P. Skabara;I. Samuel;G. Turnbull
中科院分区：
文献类型：
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作者：
Yue Wang;G. Tsiminis;A. Kanibolotsky;P. Skabara;I. Samuel;G. Turnbull
采用紫外纳米压印光刻技术制备了阈值为57 W/cm（2）的有机半导体激光器，脉冲宽度为4 ns。纳米压印激光器采用混合阶分布反馈谐振器，其中二阶光栅被一阶光栅包围，结合发光共轭聚合物。它们被InGaN LED泵浦以产生绿光发射激光器，阈值为208 W/cm（2）（102 nJ/脉冲）。这些混合激光器采用了可扩展的UV纳米压印光刻工艺，与高性能LED兼容，因此我们已经展示了一种相干，紧凑，低成本的光源。
Organic semiconductor lasers were fabricated by UV-nanoimprint lithography with thresholds as low as 57 W/cm(2) 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 green-emitting lasers, with thresholds of 208 W/cm(2) (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.