WANG Xu, XIE Ji-jiang, PAN Qi-kun etc. Discharge Characteristic of Non-chain Pulsed Deuterium Fluoride Lasers[J]. Chinese Journal of Luminescence, 2015,36(9): 1041-1046
WANG Xu, XIE Ji-jiang, PAN Qi-kun etc. Discharge Characteristic of Non-chain Pulsed Deuterium Fluoride Lasers[J]. Chinese Journal of Luminescence, 2015,36(9): 1041-1046 DOI: 10.3788/fgxb20153609.1041.
Discharge Characteristic of Non-chain Pulsed Deuterium Fluoride Lasers
In order to enhance the non-chain DF laser output energy and electro-optic conversion efficiency
the electrostatic field distribution of Chang electrode and flat electrode which was consisted by rough cathode and smooth anode was calculated by finite element method. For Chang electrode
the higher electric field of spark-pin was introduced
and the electrostatic field distribution of spark-pin UV pre-ionization was calculated. For the flat electrode
the electrostatic field distribution of burr on the cathode surface was calculated. The burrs on the cathode surface can form a series of higher electric field
but cant lead to uniformity of plate electrode field deteriorating. And then
pulsed discharge experiments were carried out on two kinds of electrodes
so discharging performance and output characteristics of non-chain pulsed DF laser were obtained. The discharge experiment results show that the uniform electric field is conducive to increase the output energy of non-chain pulsed DF laser. It is also verified that the higher electric field of the burrs on the cathode of self-initiated discharge DF laser is benefit to volume discharge. Besides
the self-initiated discharge is more applicable for large volume discharge.
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references
Deumh T F. Molecular laser action in hydrogen and deuterium halides [J]. Appl. Phys. Lett., 1967, 10:234-236.
Agroskin V Y, Bravy B G, Chernyshev Y A, et al. Aerosol sounding with a lidar system based on a DF laser [J]. Appl. Phys. B, 2005, 81:1149-1154.
Frolov Y N, Velikanov S D, Lazarenko V I, et al. Remote laser analyzer for methane sensing in the air of subterranean spaces [J]. SPIE, 2003, 4882:540-547.
Apollonov V V. High power lasers for space debris elimination [J]. Chin. Opt.(中国光学), 2013, 6(2):187-195 (in English).
Inagaki H, Kannari F, Suda A, et al. High efficiency multi-kilojoule deuterium fluoride (DF) chemical lasers initiated by intense electron beams [J]. J. Appl. Phys., 1986, 59(2):324-326.
Anderson N, Bearpark T, Scott S J. An X-ray pre-ionized self-sustained discharge HF/DF laser [J]. Appl. Phys. B, 1996, 63(6):565-573.
Ke C J, Zhang K H, Sun K, et al. A periodically pulsed HF/DF gas discharge laser [J]. Infrared Laser Eng.(红外与激光工程), 2007, 36(1):36-38 (in Chinese).
Ruan P, Xie J J, Zhang L M, et al. Dynamical simulation and experimental study of non-chain pulsed DF laser [J]. Chin. J. Lasers (中国激光), 2013, 40(7):7-11 (in Chinese).
Ruan P, Xie J J, Zhang L M, et al. UV-preionized electric-discharge non-chain pulsed DF laser [J]. Chin. J. Lumin. (发光学报), 2013, 34(4):450-455 (in Chinese).
Ruan P, Xie J J, Zhang L M, et al. Computer modeling and experimental study of non-chain pulsed electric-discharge DF laser [J]. Opt. Express, 2012, 20(27):28912-28922.
Apollonov V V, Firsov K N, Kazantsev S Y, et al. Scaling up of non-chain HF (DF)-laser initiated by self-sustained volume discharge [J]. SPIE, 2000, 3886:370-381.
Tarasenko V F, Panchenko A N. Efficient discharge-pumped non-chain HF and DF lasers [J]. SPIE, 2006, 6101:1-9.
He H Y. Electromagnetic Field Numerical Calculation Method and MATLAB Implementation [M]. Wuhan: Huazhong University of Science & Technology Press, 2004:128-130 (in Chinese).
Chang T Y. Improved uniform-field electrode profiles for TEA laser and high-voltage applications [J]. Rev. Sci. Instrum., 1973, 44(4):405407.
Yang J J. Gas Discharge [M]. Beijing: Science Press, 1983:53-55 (in Chinese).