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Chin. Phys. B, 2012, Vol. 21(8): 084212    DOI: 10.1088/1674-1056/21/8/084212

Effect of different metal-backed waveguides on amplified spontaneous emission

Zhang Bo (张波), Hou Yan-Bing (侯延冰), Lou Zhi-Dong (娄志东), Teng Feng (滕枫), Liu Xiao-Jun (刘小君), Hu Bing (胡兵), Meng Ling-Chuan (孟令川), Wu Wen-Bin (武文彬 )
Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
Abstract  We investigate the effect of metallic electrode on the ability for poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV) film to undergo amplified spontaneous emission (ASE). The threshold of the device with Ag cladding is about 10 times greater than that of a metal-free device, but metal such as Al completely shuts off ASE. The ASE recurs when a thin spacer layer, such as a few nanometers of SiO2, is introduced between the MEH-PPV film and the Al cladding. Compared with the Cu or Al electrode, the Ag cladding is most suited to serve as an electrode with its low optical loss due to its high work-function and reflectivity.
Keywords:  polymer semiconductor      amplified spontaneous emission      electrode  
Received:  29 November 2011      Revised:  23 February 2012      Accepted manuscript online: 
PACS:  42.70.-a (Optical materials)  
  78.45.+h (Stimulated emission)  
  78.66.-w (Optical properties of specific thin films)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 60978061, 60777026, 60677007, 60825407, and 61036007), the Program for New Century Excellent Talents in University, China (Grant No. NCET-08-0717), the Beijing Municipal Science and Technology Commission (Grant Nos. Z090803044009001 and 4102046), and the Program of Introducing Talents of Discipline to Universities, China (Grant No. B08002).
Corresponding Authors:  Hou Yan-Bing     E-mail:

Cite this article: 

Zhang Bo (张波), Hou Yan-Bing (侯延冰), Lou Zhi-Dong (娄志东), Teng Feng (滕枫), Liu Xiao-Jun (刘小君), Hu Bing (胡兵), Meng Ling-Chuan (孟令川), Wu Wen-Bin (武文彬 ) Effect of different metal-backed waveguides on amplified spontaneous emission 2012 Chin. Phys. B 21 084212

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