高分子基体的固体染料激光器的制备和研究  

Preparation and Study of Copolymer Solid-state Dye Lasers

作　　者：谢旭东 胡丽丽[1] 黄国松[1] 姜中宏[1] 

机构地区：[1]中国科学院上海光机所,上海201800

出　　处：《中国激光》2000年第4期307-311,共5页Chinese Journal of Lasers

摘　　要：制备了用于固体染料激光器的高分子共聚物基体 ,研究了两种激光染料 Rhodamine- B(Rh-B)和 Pyrromethene597(PM- 597)在高分子基质中的光谱性质。以调 Q的 Nd:YAG激光器的倍频光为抽运光源 ,在无外加谐振腔的条件下 Rh- B和 PM- 597掺杂的高分子基体中获得了高转换效率和大能量激光输出 。Rh B and Pyrromethene 597 laser dyes were successfully introduced into copolymer matrices of 2 hydroxypropyl methacrylate and methyl methacrylate. The spectral properties of two copolymer dye lasers were studied in the present paper. Pumped by a second harmonic Q switched Nd∶YAG laser (532 nm), laser oscillation was achieved in the well polished φ 25 mm×25 mm  cylindrical Rh B and PM 597 copolymers without resonance mirrors. It is found that in Rh B doped copolymer, slope efficiency and center lasing wavelength was 35 3% and 590 nm, respectively. While in PM 597 doped copolymer, 62 2% slope efficiency and 585 nm center lasing wavelength were detected. The laser damage threshold was 62 5 MW/cm 2 for Rhodamine B doped laser and 200 MW/cm 2 for Pyrromethene 597 doped laser.

关 键 词：高分子基体 固体染料激光器 光谱性质 

分 类 号：TN248.1[电子电信—物理电子学]