15 September 2006 The effect of ultraviolet light on one-pulse process Pockels cell gas discharge
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Abstract
Pockels cell driven by one-pulse process (OPP) is a new technique different from the regular plasma electrode Pockels cell (PEPC). In the OPP regime, only the positive and negative switching pulses will be supplied on opposite sides of the crystal. The OPP Pockels cell developed in our laboratory can work well at high working pressure. In this working pressure range, the gas is steady broken at the start of the switching pulse flattop. When the working gas is evacuated to low pressure, the discharge is unsteady. In an invariable electric field, the gas discharge is determined by the initial free electrons. At low pressure, the low density of initial electrons leads to the instability of gas discharge. The ultraviolet light conduces to increasing the density of the initial free electrons, and reducing the randomness of the initial free electrons. In this experiment, the ultraviolet light is used to irradiate the cathode of the Pockels cell. The experimental results show that, at low pressure, the breakdown of the working gas is steady, and the breakdown delay is shorter with ultraviolet irradiation.
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Deng-sheng Wu, Deng-sheng Wu, Xiong-jun Zhang, Xiong-jun Zhang, Yun Dong, Yun Dong, Xiao-jun Zhou, Xiao-jun Zhou, Xiao-lin Tian, Xiao-lin Tian, } "The effect of ultraviolet light on one-pulse process Pockels cell gas discharge", Proc. SPIE 6287, Optical Technologies for Arming, Safing, Fuzing, and Firing II, 62870H (15 September 2006); doi: 10.1117/12.683375; https://doi.org/10.1117/12.683375
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