Microscopic Investigation into the Optically Pumped Polymer Lasers Based on Distributed Feedback  

作　　者：ZHAI Tian-Rui ZHANG Xin-Ping DOU Fei 翟天瑞;张新平;窦菲(Institute of Information Photonics Technology and College of Applied Sciences,Beijing University of Technology,Beijing 100124)

机构地区：[1]Institute of Information Photonics Technology and College of Applied Sciences,Beijing University of Technology,Beijing 100124

出　　处：《Chinese Physics Letters》2012年第10期51-53,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11074018,11104007);the Research Fund for the Doctoral Program of Higher Education of China(RFDP,20091103110012);the Beijing Educational Commission(KM201210005034).

摘　　要：Polymeric semiconductors spin-coated onto the photoresist grating form discontinuously distributed flocci,which do not fill grating grooves with nanoscale widths.Thus,the polymer layer neither forms a continuous gain channel nor creates a waveguide that enhances the distributed feedback(DFB)mechanism provided by the grating structures.This is verified by the microscopic and spectroscopic investigations on the topographic surface of the polymer-covered grating as it is etched layer by layer using oxygen plasma.This gives more insights into the mechanisms involved in optically pumped polymer lasers and provides new guidance for constructing DFB lasers.

关 键 词：WAVEGUIDE PUMPED Optically 

分 类 号：TN2[电子电信—物理电子学]