High performance organic distributed Bragg reflector lasers fabricated by dot matrix holography
High performance organic distributed Bragg reflector lasers fabricated by dot matrix holography
复制标题
点阵全息制备高性能有机分布式布拉格反射激光器
DOI：
10.1364/oe.23.031926
复制
发表时间：
2015-12-14
期刊：
影响因子：
3.8
通讯作者：
Chen, Linsen
中科院分区：
文献类型：
--
作者：
Wan, Wenqiang;Huang, Wenbin;Chen, Linsen
报道了用点阵全息术制作的分布布拉格反射器（DBR）聚合物激光器。对分布式布拉格反射镜与可变镜间距的制造和一种新的能量转移共混物组成的蓝色发光的共轭聚合物和红色发光的一个是旋涂到图案化的基板上完成的设备。在光抽运下，该器件在622 nm附近产生单模激光，带宽为0.41 nm。工作阈值低至13.5 μ J/cm（2）（与1.68 kW/cm（2）相似），测得的斜率效率达5.2%。分布反馈（DFB）腔和DBR腔在相同的激射波长处谐振，而DFB激光器显示出高得多的阈值。我们进一步表明，灵活的DBR激光器可以方便地制造通过紫外压印技术，通过使用图案化的二氧化硅衬底作为模具。点阵全息术是一种控制DBR反射镜的数量、尺寸、位置和方向的通用方法，因此在设计DBR激光器时提供了很大的灵活性。(C)2015美国光学学会
We report distributed Bragg reflector (DBR) polymer lasers fabricated using dot matrix holography. Pairs of distributed Bragg reflector mirrors with variable mirror separations are fabricated and a novel energy transfer blend consisting of a blue-emitting conjugated polymer and a red-emitting one is spin-coated onto the patterned substrate to complete the device. Under optical pumping, the device emits sing-mode lasing around 622 nm with a bandwidth of 0.41 nm. The working threshold is as low as 13.5 mu J/cm(2) (similar to 1.68 kW/cm(2)) and the measured slope efficiency reaches 5.2%. The distributed feedback (DFB) cavity and the DBR cavity resonate at the same lasing wavelength while the DFB laser shows a much higher threshold. We further show that flexible DBR lasers can be conveniently fabricated through the UV-imprinting technique by using the patterned silica substrate as the mold. Dot matrix holography represents a versatile approach to control the number, the size, the location and the orientation of DBR mirrors, thus providing great flexibility in designing DBR lasers. (C) 2015 Optical Society of America