1.   高功率全固态激光技术研究， 高功率高亮度全固态激光基础科学问题研究，高功率高亮度固体激光工程技术研究，主被动光束质量控制技术研究，光束相干合成和非相干合成技术研究、高功率高亮度固体激光新技术探索等

2.   高功率变频激光技术研究：深紫外固体激光的产生和实用化技术研究，光参量激光技术研究，多次谐波产生技术研究，中红外固体激光技术研究等。

3.   全固态激光应用技术研究：如激光先进制造、激光医疗等

代表论著：

二、主要代表作目录

1) Qinjun Peng, Guiling Wang, Yong Bo, Xinjun Guo, Aicong Geng and Zuyan Xu，Liyong Ren, Yani Zhang, Yishan Wang, Wei Zhao and Lili Wang, Highly-efficient tunable tapered-polymer-fiber lasers，Applied Physics Letters, Vol 87 (25) 2005

2) Qinjun Peng; Sun, Zhipei; Chen, Yahui; Guo, Lin; Bo, Yong; Yang, Xiaodong; Xu, Zuyan Efficient improvement of laser beam quality by coherent combining in an improved Michelson cavity, Optics Letters, v 30, n 12, Jun 15, 2005, p 1485-1487

3) Qinjun Peng; Guo Yongkang; Liu Shijie; Cui Zheng Real-time gray-scale photolithography for fabrication of continuous microstructure Optics Letters, v 27, n 19, Oct 1, 2002, p 1720-1722

4) Qinjun Peng, Zhou Y, Chen Y, Sun Z, Bo Y, Yang X, Xu Z, Wang Y, Li K, Zhao W Phase locking of fibre lasers by self-imaging resonator Electronics Letters 41 (4): FEB 17 2005 171-173

5) Qinjun Peng; Guo, Yongkang; Zhu, Jianhua; Zeng, Yangsu; Liu, Shijie,A microcylindrical lens array made of silver-halide-sensitized gelatin etched by an enzyme with a real-time mask Journal of Modern Optics, v 50 (11), Jul 20, 2003, p 1725-1734

6) Qinjun Peng, Liu, Shijie; Guo, Yongkang; Chen, Bo; Du, Jinglei; Zeng, Yangsu; Zhou, Chongxi; Cui, Zheng Real-time photolithographic technique for fabrication of arbitrarily shaped microstructures, Optical Engineering, v 42, n 2, February, 2003, p 477-481

7) Qinjun Peng, Xiaodong YANG, Xuejun WANG, Aicong GENG, Aiyun YAO and Zuyan XU, High-Average-Power Scaling Behavior of Optical Parametric Oscillators, Optical Review, Vol. 12, No. 4 (2005) 307-312