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《CHINESE JOURNAL OF LUMINESCENCE》 2000-01
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Low Threshold Lasing in Microdisk Quantum Well Laser

NING Yong qiang, WU Sheng li, WANG Li jun, LIU Yun, LIU Xing yuan, ZHAO Jia min, WU Dong jiang, JIN Yi xin (Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun 130021, China) (Changchun Institute of Physics, Chi  
Microcavity lasers have been attracting much more attention recently. Microdisk lasers represent a novel class among them. The disk thickness is typically only a half of an optical wavelength in the materials. Whispering gallery modes near the disk edge account for the low loss resonator modes. InGaAs/InGaAsP MQW microdisk lasers based on this disk resonator were fabricated by using standard photolithography, reactive ion etching (RIE) and wet chemical etching. The MQW materials were grown on InP substrates by gas source MBE technique. The diameters of the disk laser we had made were 8μm, 4.5μm and 2μm, respectively. The optical properties of the disk were characterized by optical pumping at liquid nitrogen temperature. The lasing threshold of the disk with a diameter of 2μm was only about 3μW when pumped by 514.5nm line of Ar ion laser. To our knowledge, this threshold of 3μW is the lowest one up to now. Multiple mode lasing, mode chirping and output saturation were investigated when pumped at high optical pump density. It was observed that the structure of the photoluminescence spectra became sophisticated with increasing the pump power. New lasing peaks appeared and became dominated in the spectra. It was also observed that the intensity of lasing lines became saturated with increasing the pump power. The linewidth of lasing peak was of the order of about 1.3nm. It was also observed that microdisk lasers showed anomalous linewidth behavior compared with ordinary semiconductor laser. This characteristic was usually explained with many body effect induced by the non equilibrium carrier distribution when optically pumped.
【Fund】: 中国科学院“九五”重大项目;; 中国科学院院长基金资助
【CateGory Index】: TN248
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【References】
Chinese Journal Full-text Database 1 Hits
1 Xiong Zu-Hong Shi Hua-Zhong Fan Yong-Liang Zhang Song-Tao Zhan Yi-Qiang He Jun Zhong Gao-Yu Xu Shao-Hui Liu Yi Wang Xiao-Jun Wang Zi-Jun Ding Xun-Min (Surface Physics Laboratory (National Key Laboratory), Fudan University, Shanghai 200433, China) Huang Wei (Institute of Advanced Material and Technology and Department of Macromolecule Science, Fudan University, Shanghai 200433, China) Hou Xiao-Yuan (Surface Physics Laboratory (National Key Laboratory) and Institute of Advanced Material and Technology, Fudan University, Shanghai 200433, China);Enhanced chromaticity of organic electroluminescence from silicon-based organic microcavity[J];Acta Physica Sinica;2003-05
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 LIU Xiao\|bing\+1, XIONG Zu\|hong, SHI Xiang\|hua\+1, YUAN Shuai and LIAO Liang\|sheng(Surface Physics Laboratory,Fudan University, Shanghai\ 200433, China) (1\ Physics Department,Changsha Electric Power University, Changsha\ 410077, China)Received 13 O;Surface Passivation of Porous Silicon by Si0_x and Al_2O_3 Films *[J];CHINESE JOURNAL OF SEMICONDUCTORS;2000-01
2 WANG XIAO\|PING (Department of Physics,University of Science and Technology of China,Hefei\ 230026) ZHOU XIANG\ HE JUN\ LIAO LIANG\|SHENG (State Key Laboratory of Surface Physics,Fudan University,Shanghai\ 200433) WU ZI\|QIN (Department of Astronomy;MULTIFRACTAL OF THE FAILURE PEROCESS OF ELECTROLUMINSCENCE OF ORGANIC THIN FILM [J];ACTA PHYSICA SINICA;1999-10
3 LU MING XU SHAO HUI\ ZHANG SONG TAO\ HE JUN\ XIONG ZU HONG\ DENG ZHEN BO\ DING XUN MIN\ (Surface Physics Laboratory (National Key Laboratory),Fudan University,Shanghai\ 200433,China);OPTICAL PROPERTIES OF ORGANIC MICROCAVITY BASED ON POROUS SILICON BRAGG REFLECTOR[J];ACTA PHYSICA SINICA;2000-10
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【Secondary References】
Chinese Journal Full-text Database 4 Hits
1 TAO Hai-hua1 YAO Ning1 DU Chen-xia2 ZHANG Bing-lin1 (1 Laboratory of Material Physics of the Ministry of Education of China, Zhengzhou University, Zhengzhou 450052, China; 2 Chemistry Department of Zhengzhou University, Zhengzhou 450052, China );Microcavity Effects of Organic Electroluminescence[J];Optics & Optoelectronic Technology;2004-02
2 Wei Fu-Xiang Cao Jin Zhang Xiao-Bo Liu Xiang Jiang Xue-Yin Zhang Zhi-Lin Zhu Wen-Qing Xu Shao-Hong(Institute of Materials Science and Engineering, Shanghai University, Shanghai 201800,China);Blue and white organic light emitting diodes based on a new stilbene derivative dopant[J];Acta Physica Sinica;2006-04
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