Microwave induced patterns in n-GaAs and their photoluminescence imaging
2000
Using the technique of photoluminescence imaging, self-organized patterns of high-electron density in
homogeneous n-GaAs layers under homogeneous microwave irradiation are studied. The structures are shown
to be analogous to current filaments in a static electric field. The symmetry of the microwave induced patterns
is not constrained by the current feeding electrodes. It is, however, concluded that a feedback mechanism exists
between the formation of high-conducting structures and the homogeneity of the incident microwave
irradiation.
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