共查询到17条相似文献,搜索用时 43 毫秒
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N/A 《激光与光电子学进展》1974,11(9):44
铜蒸气激光器在可见光谱区可能具有高效率,最初曾引起许多研究者的兴趣,但是其典型运转温度为1500 ℃这一点却阻碍了这种激光器的研制。美国喷气推进实验室的陈(C. J. Chen),内尔海姆(N. M. Nerheim)和拉塞尔(G. R. Russell)报导,以氯化亚铜为激射物的双放电铜蒸气激光器在400 ℃下运转。第一个脉冲被认为是分解脉冲,产生铜和氯原子;第二个脉冲大概就是泵浦脉冲。在396 ℃和180微秒的脉冲间延迟情况下获得30千瓦的峰值功率。 相似文献
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自1982年9月以来,中国科学院上海光机所开始了对铜蒸气激光器的研制,先后设计并制成了CVL-Ⅰ型和CVL-Ⅱ型器件,在此基础上,于1985年11月研制成了第一台CVL-Ⅲ型铜蒸气激光器并送有关医疗单位进行临床研究和应用。 1986年6月30日,由上海市科委、上海市经委和中国科学院上海分院等领导机关组织了50多位 相似文献
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于长海 《激光与光电子学进展》1979,16(7):25
实践表明,密封铜蒸气激光器可以工作2000多小时,并借助增大缓冲气体的压力来提高激光器的寿命,但能引起它的效率会有某些降低。本文讨论了提高激光器效率以及减小激光器加热到工作温度时间的可能性。 相似文献
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总结了近几年来大口径、高功率铜蒸气激光器实验和理论方面的工作,讨论了高功率铜蒸气激光器结构、大口径铜节气激光器模型和工作物质的重大改进,展望了高功率铜节气激光器实验及理论方面的进展及可行性方案。 相似文献
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Anderson R. Springer L. Bricks B. Karras T. 《Quantum Electronics, IEEE Journal of》1975,11(4):172-174
A simple, reliable copper vapor laser is described with vapor produced by discharge heating. Average output power of 1.3 W has resulted at 6.8 kHz and a specific energy of 39 μJ/cm3. Copper vapor density as high as3 times 10^{16} cm-3was achieved. 相似文献
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A simple CuI double-pulsed laser was built. The dependence of power output on the delay between the two excitation pulses, temperature, and the type of buffer gas has been investigated. The laser pulse duration was measured. 相似文献
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We report dramatic improvements (up to four times) in the generation of high-beam-quality (HBQ) output power from copper vapor lasers (CVLs) by using tailored HCl-H2-Ne buffer gas mixtures. Up to 60 W of HBQ power was obtained from a 38-mm bore-diameter CVL at a pulse repetition frequency of 12 kHz and 50 W at 22 kHz. This improvement in power capability is attributable to the modification of the spatio-temporal gain characteristics of the laser when using the new buffer gas mixture 相似文献
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Se Jong Baik Kiegon Im Hyung Jong Lee Young Tae Ryu 《Quantum Electronics, IEEE Journal of》2000,36(2):155-157
We have studied a copper vapor laser equipped with unstable resonator optics and an intracavity beam splitter. The magnification of the present resonator configuration is as high as 60, and single transverse mode operation is practically supported in this system. We report on the laser output with near diffraction-limited beam divergence and a new observation of self-mode-locking behavior in the output pulses 相似文献
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The results of a preliminary measurement of the performance parameters for a transverse-discharge copper vapor laser that was successfully operated at 5 kHz in steady-state mode are discussed. In unoptimized operation, an average power of 1.8 W was obtained at 5 kHz in steady-state mode with an efficiency of 0.48%. The power output increases almost linearly with the repetition rate. This demonstrates that it is now possible to develop discharge-heated transverse-discharge copper-vapor lasers for practical applications 相似文献