Photoconductive switching of a high-voltage spark gap

Brussaard, G. J. H.; Hendriks, J.
February 2005
Applied Physics Letters;2/21/2005, Vol. 86 Issue 8, p081503
Academic Journal
We have demonstrated photoconductive switching of a gas-filled spark gap. A femtosecond Ti:sapphire laser was focused in a 1 mm spark gap biased at 4.5 kV. There is a clear transition between triggered operation, when only part of the path between the electrodes is ionized, and photoconductive switching, when the entire length of the gap is ionized directly by the laser. The measured standard deviation of the time fluctuations between the rising edge of the transmitted electrical pulse and the laser was less than 15 ps.


Related Articles

  • Theoretical investigation of a photoconductively switched high-voltage spark gap. Broks, B. H. P.; Hendriks, J.; Brok, W. J. M.; Brussaard, G. J. H.; van der Mullen, J. J. A. M. // Journal of Applied Physics;6/15/2006, Vol. 99 Issue 12, p123302 

    In this contribution, a photoconductively switched high-voltage spark gap with an emphasis on the switching behavior is modeled. It is known experimentally that not all of the voltage that is present at the input of the spark gap is switched, but rather a fraction of it drops across the spark...

  • Experimental investigation of an atmospheric photoconductively switched high-voltage spark gap. Hendriks, J.; Broks, B. H. P.; van der Mullen, J. J. A. M.; Brussaard, G. J. H. // Journal of Applied Physics;8/15/2005, Vol. 98 Issue 4, p043309 

    We report on the experimental investigation of the photoconductively switched gas-filled spark gap. When the laser intensity of a femtosecond laser is high enough (around 1018 W m-2), a plasma can be created that spans the complete distance between the electrodes. The gas-filled spark gap is...

  • Dual channel formation in a laser-triggered spark gap. Kushner, M. J.; Kimura, W. D.; Ford, D. H.; Byron, S. R. // Journal of Applied Physics;12/1/1985, Vol. 58 Issue 11, p4015 

    Presents a study that examined the formation of dual channel in a laser-triggered spark gap. Methodology; Calculation of the resistance of the arc in a spark column; Discussion on the interferometric measurements of the laser preionization-trigerred dual spark columns.

  • Fundamental processes in the laser-triggered electrical breakdown of gases: Unconventional geometries. Dougal, R. A.; Williams, P. F. // Journal of Applied Physics;12/15/1986, Vol. 60 Issue 12, p4240 

    Presents a study which investigated the laser-triggered electrical breakdown of spark gaps in three nonconventional geometries. Details of geometrical dependencies; Discussion; Conclusion.

  • Reliable spark gap switch for laser triggering. Golnabi, Hossein // Review of Scientific Instruments;Dec1992, Vol. 63 Issue 12, p5804 

    The design of a low inductance spark gap suitable for triggering lasers, using circuit boards as transmission lines, is presented. This spark gap is highly reliable for repetitive switching, and it is capable of delivering high voltage and current in the triggering operation. The switch...

  • A small size 1-3 atm pulsed CO2 laser with series-connected spark gaps ultraviolet preionization. Silakhori, K.; Jelvani, S.; Ghanavati, F.; Sajad, B.; Talebi, M.; Sadr, M. R. // Review of Scientific Instruments;2014, Vol. 85 Issue 1, p1 

    A small size pulsed CO2 laser with rounded edge flat profiled electrodes and variable gas pressure in 1-3 atm range has been constructed and characterized. The perionization system consists of a pair of 16 series-connected spark gaps located along either side of the main electrodes by which, the...

  • p-Hg0.8Cd0.2Te based large area fast photoresistor. Aliev, A. A.; Kuliev, Sh. M.; Mamedov, A. K.; Mukhtarova, R. I. // Instruments & Experimental Techniques;May2010, Vol. 53 Issue 3, p447 

    The design and manufacturing technology of large area fast photoresistors by drawing additional electrodes on their back side are described. The measurement of the modernized p-Hg0.8Cd0.2Te based pho-toresistornal has shown that its operation speed increases inversely proportional to the...

  • Back-side illuminated Ga0.47In0.53As photoconductive detectors and associated dark zones. Chen, C. Y.; Cox, H. M.; Garbinski, P. A.; Hummel, S. G. // Applied Physics Letters;1984, Vol. 45 Issue 8, p867 

    We report the first back-side illuminated Ga0.47In0.53As photoconductive detector. The scheme of back-side illumination has led to an improvement of 1.5 dB in responsivity over front-side illumination. Furthermore, we observed dark zones where responsivities showed a minimum in the vicinity of...

  • Construction techniques of a molecular hydrogen laser. Babis, Jeffery S.; Huth, Thomas C.; Denton, M. Bonner // Review of Scientific Instruments;Oct85, Vol. 56 Issue 10, p1969 

    Simple techniques are described for construction of a discharge channel, and spark gap trigger electrode for a traveling-wave excited molecular hydrogen laser.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics