掺杂染料聚合物光学泵浦薄膜的放大自发辐射和增益。

Amplified spontaneous emission and gain from optically pumped films of dye-doped polymers.

作者信息

Lu Wu, Zhong Bo, Ma Dongge

机构信息

State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.

出版信息

Appl Opt. 2004 Sep 10;43(26):5074-8. doi: 10.1364/ao.43.005074.

DOI:10.1364/ao.43.005074

PMID:15468709

Abstract

The amplified spontaneous emission and gain characteristics of various fluorescent dyes, 2-(1,1-dimethylethyl)-6(2-(2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H-benzo[ij] quinolizin-9-1)ethenyl)-4H-pyran-4-ylidene) propanedinitrile (DCJTB) and 4-dicyanomethylene-2-methyl-6-(p-dimethyl-aminostyryl)-4H-pyran (DCM), doped in polystyrene (PS) matrices were studied and compared. It was found that DCJTB has a larger net gain, 40.72 cm(-1), a lower loss, 2.49 cm(-1), and a lower threshold, 0.16 (mJ/ pulse)/cm2, than DCM, which has a net gain of 11.95 cm(-1), a loss of 9.25 cm(-1), and a threshold of 4(mJ/pulse)/cm2. The improvement of performance in DCJTB PS films is attributed to the larger free volume of DCJTB caused by the introduction of steric spacer groups into the DCJTB molecule.

摘要

研究并比较了掺杂在聚苯乙烯（PS）基质中的各种荧光染料，即2-(1,1-二甲基乙基)-6(2-(2,3,6,7-四氢-1,1,7,7-四甲基-1H,5H-苯并[ij]喹嗪-9-1)乙烯基)-4H-吡喃-4-亚基)丙二腈（DCJTB）和4-二氰基亚甲基-2-甲基-6-(对二甲氨基苯乙烯基)-4H-吡喃（DCM）的放大自发辐射和增益特性。结果发现，DCJTB的净增益更大，为40.72 cm⁻¹，损耗更低，为2.49 cm⁻¹，阈值更低，为0.16（mJ/脉冲）/cm²，而DCM的净增益为11.95 cm⁻¹，损耗为9.25 cm⁻¹，阈值为4（mJ/脉冲）/cm²。DCJTB PS薄膜性能的改善归因于在DCJTB分子中引入空间间隔基团导致DCJTB具有更大的自由体积。