Journal ArticleDOI
Room-temperature ultraviolet nanowire nanolasers
Michael H. Huang,Samuel S. Mao,Henning Feick,Haoquan Yan,Yiying Wu,Hannes Kind,Eicke R. Weber,Richard E. Russo,Peidong Yang,Peidong Yang +9 more
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TLDR
Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated and self-organized, <0001> oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process.Abstract:
Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated The self-organized, oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process These wide band-gap semiconductor nanowires form natural laser cavities with diameters varying from 20 to 150 nanometers and lengths up to 10 micrometers Under optical excitation, surface-emitting lasing action was observed at 385 nanometers, with an emission linewidth less than 03 nanometer The chemical flexibility and the one-dimensionality of the nanowires make them ideal miniaturized laser light sources These short-wavelength nanolasers could have myriad applications, including optical computing, information storage, and microanalysisread more
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Growth and Optical Properties of Strained GaAs−GaxIn1-xP Core−Shell Nanowires
Niklas Sköld,Lisa Karlsson,Magnus Larsson,Mats-Erik Pistol,Werner Seifert,Johanna Trägårdh,Lars Samuelson +6 more
TL;DR: In this paper, the authors synthesized GaAs−GaxIn1-xP (0.34 < x < 0.69) core−shell nanowires by metal−organic vapor phase epitaxy.
Journal ArticleDOI
Surface plasmon enhanced band edge luminescence of ZnO nanorods by capping Au nanoparticles
Chuanwei Cheng,Edbert J. Sie,Bo Liu,Cheng Hon Alfred Huan,Tze Chien Sum,Handong Sun,Hong Jin Fan +6 more
TL;DR: In this article, the surface plasmon of Au nanoparticles was used to enhance the ultraviolet emission of ZnO nanorods, while the defect-related emission was completely suppressed.
Journal ArticleDOI
Laser action in nanowires: Observation of the transition from amplified spontaneous emission to laser oscillation
TL;DR: In this article, the optical power evolves from a superlinear to a linear regime as the pump power exceeds threshold, concomitant with a transition to directional emission along the nanowire and the emergence of well defined cavity Fabry-Perot modes around a wavelength of ≈385nm, the intensity of which exceeds the spontaneous emission background by orders of magnitude.
Journal ArticleDOI
Light-induced pyroelectric effect as an effective approach for ultrafast ultraviolet nanosensing.
Zhaona Wang,Zhaona Wang,Ruomeng Yu,Caofeng Pan,Zhaoling Li,Jin Yang,Fang Yi,Zhong Lin Wang,Zhong Lin Wang +8 more
TL;DR: This work provides a novel design to achieve ultrafast ultraviolet sensing at room temperature via light-self-induced pyroelectric effect and may find promising applications in ultrafast optics, nonlinear optics, optothermal detections, computational memories and biocompatible optoelectronic probes.
Journal ArticleDOI
Advances in Small Perovskite-Based Lasers
TL;DR: In this paper, the perovskite nanophotonics, in particular the lasing properties of perovsite nanostructures, are discussed, and the rapid advances of small lasers based on perov-skites using both active and passive microcavities are reviewed; these are mainly classified into four sections: thin films, nanoplatelets, nanowires, and quantum dots.
References
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Indium phosphide nanowires as building blocks for nanoscale electronic and optoelectronic devices
TL;DR: The assembly of functional nanoscale devices from indium phosphide nanowires, the electrical properties of which are controlled by selective doping are reported, and electric-field-directed assembly can be used to create highly integrated device arrays from nanowire building blocks.
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Catalytic Growth of Zinc Oxide Nanowires by Vapor Transport
TL;DR: In this paper, the capacitance matrix was calculated for different chain lengths using the software package FastCap MIT (1992) and a ligand shell dielectric constant of 3.14 aF.
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Optical gain and stimulated emission in nanocrystal quantum dots.
Victor I. Klimov,Alexander Mikhailovsky,S. Xu,Anton V. Malko,Jennifer A. Hollingsworth,C. A. Leatherdale,H.-J. Eisler,Moungi G. Bawendi +7 more
TL;DR: In this article, the authors examined the competing dynamical processes involved in optical amplification and lasing in nanocrystal quantum dots and found that, despite a highly efficient intrinsic nonradiative Auger recombination, large optical gain can be developed at the wavelength of the emitting transition for close-packed solids of these dots.
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Optical gain in silicon nanocrystals
TL;DR: It is demonstrated that light amplification is possible using silicon itself, in the form of quantum dots dispersed in a silicon dioxide matrix, which opens a route to the fabrication of a silicon laser.
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Optically pumped lasing of ZnO at room temperature
TL;DR: In this paper, the authors reported the observation of optically pumped lasing in ZnO at room temperature using a plasma-enhanced molecular beam epitaxy on sapphire substrates.