نتایج جستجو برای: induced polarization
تعداد نتایج: 1039108 فیلتر نتایج به سال:
Negative-induced polarization (IP) time-domain transients, sign-changing or nonmonotonically decaying are currently often considered as measurement errors and removed in data processing. These here called heterodox the sense of other than generally accepted signals, might originate from errors, inductive effects, poor signal processing, but synthetic modeling field measurements indicate that th...
Two conventional errors in the stress-induced birefringence (SIB) of polarization-maintaining fibers (PMFs) are revealed and corrected. The first issue refers to fundamental expression its calculation SIB, which depends on selection stress components. There were obvious inconsistencies two pioneering reports, while both widely applied subsequent works. second is basic form Airy function (ASF) c...
We investigate the dynamic nuclear polarization (DNP) caused by hyperfine coupling between nonequilibrium electronic spins and nuclear spins in semiconductor nanostructures. We derive the time and position dependence of the resulting hyperfine and dipolar magnetic fields. In GaAs quantum wells the induced nuclear spin polarization greatly exceeds the polarization of the electronic system that c...
We demonstrate polarization control in optically-pumped single GaN nanowire lasers fabricated by a top-down method. By placing the GaN nanowires onto gold substrates, the naturally occurring randomly orientated elliptical polarization of nanowire lasers is converted to a linear polarization that is oriented parallel to the substrate surface. Confirmed by simulation results, this polarization co...
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