More than 25db suppression of an (sausage) standing wave is obtained by feeding back only 0.5% of the instability oscillation output power. This mode is spontaneously generated at injected plasma currents of as little as∼1A (corresponding to a plasma density of ∼1014 cm−3) in p‐InSb with an applied axial magnetic field of ∼400G. The linear growth rate is measured to be . The first and second nonlinear saturation coefficients are determined to be and . As either the current or magnetic field strength is increased, and increase.
3.10 Feedback Stabilization and Measurement of Instability Coefficients in Electron‐Hole Plasmas
Betsy Ancker‐Johnson, Hans Jacob Fossum, Alfred Y. Wong; 3.10 Feedback Stabilization and Measurement of Instability Coefficients in Electron‐Hole Plasmas. AIP Conf. Proc. 1 January 1970; 1 (1): 160–165. https://doi.org/10.1063/1.2948486
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