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| Amplified Spontaneous Emision of K2Yellow Band Excimer and Its Gain Measurement by e-beam-pumpingResearch on Injection-seeded β-BaB2O4Optical Parameteric Oscillator | |
| 引用本文： | XING Da,WANG Qi,TAN Shici,ZHAO Yonghua,HE Huijiuan,WANG Zhijiang. Amplified Spontaneous Emision of K2Yellow Band Excimer and Its Gain Measurement by e-beam-pumpingResearch on Injection-seeded β-BaB2O4Optical Parameteric Oscillator[J]. Chinese Journal of Lasers, 1998, 7(2): 97-102103 |
| 作者姓名： | XING Da WANG Qi TAN Shici ZHAO Yonghua HE Huijiuan WANG Zhijiang |
| 作者单位： | XING Da:Institute of Laser Life Science, South China Normal University, Guangzhou 510631 WANG Qi:Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150006 TAN Shici:Institute of Laser Life Science, South China Normal University, Guangzhou 510631 ZHAO Yonghua:Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800 HE Huijiuan:Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800 WANG Zhijiang:Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800 |
| 摘 要： | |
Amplified Spontaneous Emision of K2Yellow Band Excimer and Its Gain Measurement by e-beam-pumpingResearch on Injection-seeded β-BaB2O4Optical Parameteric Oscillator |
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| Abstract: | The design of a high temperature cell appropriate for electron beam side pumping of alkali excimer lasers is described. By using the cell, an amplified spontaneous emission (ASE) and small signal gain coefficient of 4% cm-1 of the K2 yellow band (574 nm) were observed from the e beam excited mixture of K/K2 vapor with argon buffer gas. The dissociative recombination of K+3 is discussed as an efficient formation process of upper states by electron beam pumping.It has demonstrated the feasibility of a β-BaB2O4 optical parametric oscillator(OPO) without frequency control elements that produces very narrow bandwidth, 10 ns pulses via injection seeding. It was achieved by a CW He Ne laser and the experiment threshold for injection seeding is less than 1 mW. With 25 mJ pump energy at 354.7 nm, it has obtained pulse energy of 2 mJ at 632.8 nm and the total effiency is greater than 15%. |
| Keywords: | K2 excimer gain coefficient electron beam pumpingβ-BaB2O4 crystal optica parameter oscillator injection seeding |