Radial Pulse Propagation And Impedance Characteristics Of Optically Shuttered Channel Intensifier Tubes

J. L. Detch Jr.; B. W. Noel

doi:10.1117/12.932082

30 December 1981 Radial Pulse Propagation And Impedance Characteristics Of Optically Shuttered Channel Intensifier Tubes

J. L. Detch Jr., B. W. Noel

Author Affiliations +

Proceedings Volume 0288, Los Alamos Conf on Optics '81; (1981) https://doi.org/10.1117/12.932082
Event: Los Alamos Conference on Optics, 1981, Los Alamos, United States

Abstract

Electrically gated proximity-focused channel intensifier tubes are often used as optical shutters. Optimum nanosecond shuttering requires both understanding the electrical pulse propagation across the device structure and proper impedance matching. A distributed-transmission-line model is developed that describes analytically the voltage-and current-wave propagation characteristics as functions of time for any point on the surface. The optical gain's spatial uniformity and shutter-open times are shown to depend on the electrical pulse width and amplitude, and on the applied bias. The driving-point impedance is derived from the model and is expressed as a function of an infinite sum of terms in the complex frequency. The synthesis in terms of lumped-constant network elements is realized in first-and second-Foster equivalent circuits. Experimental impedance data are compared with the model's predictions and deviations from the ideal model are discussed.

Citation Download Citation

J. L. Detch Jr. and B. W. Noel "Radial Pulse Propagation And Impedance Characteristics Of Optically Shuttered Channel Intensifier Tubes", Proc. SPIE 0288, Los Alamos Conf on Optics '81, (30 December 1981); https://doi.org/10.1117/12.932082

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