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Journals and Conferences
The plasmoid-induced-reconnection model explaining solar flares based on bursty reconnection produced by an ejecting plasmoid suggests a possible relation between the ejection velocity of a plasmoid and the rate of magnetic reconnection. In this study, we focus on the quantitative description of this relation. We performed magnetohydrodynamic (MHD)… (More)
Strong direct gap light emission is obtained from germanium-on-insulator (GOI) with tensile strain of 0.16% and ultra-high n-type doping concentration up to 1.0×10<sup>20</sup> cm<sup>-3</sup>. Microdisk resonators are also fabricated on GOI and show modulated emission spectra.
To understand the stability of the liquid phase of ionic liquids under high pressure, we investigated the phase behavior of a series of 1-alkyl-3-methylimidazolium tetrafluoroborate ([Cnmim][BF4]) homologues with different alkyl chain lengths for 2 ≤ n ≤ 8 up to ∼7 GPa at room temperature. The ionic liquids exhibited complicated phase behavior, which was… (More)
Well-resolved resonant PL peaks were observed from microdisks fabricated on heavily n-doped GOI. FSR and Q-factor confirmed that these peaks corresponded to the WGMs of microdisk. Q-factors didn't decrease against pump power, indicating the onset of population inversion. Our results show that GOI is a promising platform to realize lasers.