Small Scale Electron Density Fluctuations In A Disturbed Ionospheric Environment

J D Huba; G Ganguli

doi:10.1117/12.951749

8 August 1989 Small Scale Electron Density Fluctuations In A Disturbed Ionospheric Environment

J D Huba, G Ganguli

Proceedings Volume 1060, Nonlinear Optical Beam Manipulation and High Energy Beam Propagation Through the Atmosphere; (1989) https://doi.org/10.1117/12.951749
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Electron density fluctuations in the earth's ionosphere can adversely affect SDIO systems which involve electromagnetic wave propagation, e.g., laser beams. This is particularly true for severely disturbed ionospheric conditions produced by high altitude nuclear explosions (HANEs). In this paper we present a detailed analysis of the lower-hybrid-drift instability; an instability which is likely to be excited in the ionosphere following a high altitude burst and can generate small scale electron density fluctuations (i.e., λ ≤ 10's m). We focus on the HANE environment at early times (t ≤ min) because of its importance to SDIO systems and because it is an unusual plasma regime: high β and collisional. Both the linear and nonlinear behavior of this instability are discussed. We describe how these results can be applied to potential SDIO laser systems in a HANE environment.

Citation Download Citation

J D Huba and G Ganguli "Small Scale Electron Density Fluctuations In A Disturbed Ionospheric Environment", Proc. SPIE 1060, Nonlinear Optical Beam Manipulation and High Energy Beam Propagation Through the Atmosphere, (8 August 1989); https://doi.org/10.1117/12.951749

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