Notably, the simulated emission enhancement for higher distances of ~350 nm is fully compensated by a minimum of the excitation profile preventing an effective enhancement in this height region.
To selectively enhance the emission in this height region, the optimal coating design features a 2 nm germanium (Ge) layer, followed by a 50 nm silver (Ag) layer covered by 10 nm of silicon nitride (Si3N4) (Fig. 1a).
In contrast, a three-dimensional (3D) sample will partly exceed the enhancement region so that features located in and outside the enhancement maximum can be distinguished within a very sharp height region.
The present paper deals with the basic concept that has been successfully put to test for neutral wind measurements in a critical height region, thus highlighting its potential to fill up a void in the Aeronomic studies.
The lower MIL is located in a height region from 70to9090 km, with the peak at around 83 ± 4 km with the temperature of 205 ± 5 K, and the thickness of 4 10 km.
The electron temperatures estimated from the LP data showed abnormally high values in the base of the F-region during the upleg of the rocket and practically normal values in the same height region during the downleg.
The mean flow acceleration produced by the divergence of the momentum flux due to the observed Kelvin waves in the 35 60 km height region were compared with the zonal flow accelerations computed from the observed zonal winds.
The presence or absence of plasma irregularities in a given height region can, therefore, give us information as to whether the deviations of the observed electron density profiles from the IRI predictions are genuine or not.
By scanning the thermal probe under isothermal conditions over a cross section of the laminate film, a high-contrast image of apparent thermal conductivity at the interfacial region was obtained even for the flat height region observed using an atomic force micrograph.
As a consequence, the lifetime of Na+ ions increases to a few hours at this height region.
At the same time, zonal wind perturbations picked up in the 50 65-km 50 65-kmegion witheighte wind shearegion
