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- W2970285485 abstract "Semiconductor nanowires have undergone a significant expansion and become a highly active research area within the nanoscience community. Nanoscopic light source is one of the most promising applications, miniaturizing the footprint of future optoelectronic devices. Besides, since semiconductor nanowires can provide both gain medium and photonic cavity, they are very promising as compact photonic lasers, but still suffering from high lasing threshold and poor directionality. As will be shown in this work, InP nanowire lasers with cat's eye (CE) antenna were designed and fabricated. As compared to bare nanowire lasers, the emission efficiency and profile are largely improved in following aspects: (i) The far-field distribution shows a narrower emission angle, which indicates that the integrated CE antenna strongly governs the propagation direction of the nanowire emission. (ii) The degree of polarization is increased from 0.5 to 0.7, which is a direct result of the polarization sensitivity of the integrated split-gap CE antenna due to the cylindrical symmetry breaking. (iii) The internal quantum efficiency is enhanced, which verifies the distinct localization of optical energy densities in the nanowire. (iv) The lasing threshold is dramatically reduced, which is due to the surface plasmon-assisted confinement of luminescence within the InP gain medium." @default.
- W2970285485 created "2019-09-05" @default.
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- W2970285485 date "2019-05-01" @default.
- W2970285485 modified "2023-09-29" @default.
- W2970285485 title "Low-Threshold Vertical Lasing from InP Nanowire Embedded in Cat's Eye Antenna" @default.
- W2970285485 doi "https://doi.org/10.1109/iciprm.2019.8819231" @default.
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