Browsing by Author "Rinnert, K."
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Item Open Access Beobachthung der Brillouin-Instabilität in der Ionosphäre(Editor no identificado, 1974) Fejer, J.A.; Rinnert, K.; Woodman Pollitt, Ronald FranciscoObservations of weak stimulated Brillouin scattering with the 50 MHz incoherente scatter radar at Jicamarca are described. The non-linear interaction uf the upgoing radar wave with the downcoming waves, incoherently backscattered fromm greater heights, causes an asymmetry in the incoherent "ion" backscatter spectrum. For a given antenna aperture this asymmetry increases with increasing power and decreasing frequency of the rdar. The theoretically predicted effect was unambiguuosly verified, using 3 msec pulses and long integration time. Model calculations show good agreement with the observations.Item Restricted Detection of stimulated brillouin scattering by the Jicamarca Radar(American Geophysical Union, 1978-05-01) Fejer, J.A.; Rinnert, K.; Woodman Pollitt, Ronald FranciscoObservations of weak stimulated Brillouin scattering with the 50-MHz incoherent scatter radar at Jicamarca are described. The nonlinear interaction of the upgoing radar wave with the downcoming waves incoherently backscattered from greater heights, accuses an asymmetry in the incoherent 'ion' backscatter spectrum. For a given antenna aperture this asymmetry increases with increasing power and decreasing frequency of the radar. The theoretically predicted effect was unambiguously verified, using 3-ms pulses and long integration time. Model calculations based on the theory presented show good agreement with the observations.