中国物理B ›› 2011, Vol. 20 ›› Issue (7): 77803-077803.doi: 10.1088/1674-1056/20/7/077803
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
张波, 侯延冰, 滕枫, 娄志东, 刘小君, 胡兵, 武文彬
Zhang Bo (张波), Hou Yan-Bing (侯延冰), Teng Feng (滕枫), Lou Zhi-Dong (娄志东), Liu Xiao-Jun (刘小君), Hu Bing (胡兵), Wu Wen-Bin (武文彬)
摘要: We investigate the amplified spontaneous emission (ASE) from an Ag-backed poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) film with different film thicknesses. The ASE characteristics of Ag-backed MEH-PPV films with different thicknesses show that increasing the film thickness can reduce the influence of the Ag cladding. The threshold, the gain, and the loss of the device with a thickness of 170 nm are comparable to those of a metal-free device. The lasing threshold of this device is about 7.5 times that of a metal-free device. Our findings demonstrate that Ag-backed MEH-PPV film with an appropriate thickness can still be a good polymer gain material for the fabrication of solid-state lasers.
中图分类号: (Stimulated emission)