Search query: Room-temperature ultraviolet nanowire nanolasers

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abstract: Room temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated. The self organized, <0001> 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 0.3 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 microanalysis.
author_names: Michael H Huang

Samuel Mao

Henning Feick

Haoquan Yan

Yiying Wu

Hannes Kind

Eicke R Weber

Richard E Russo

Peidong Yang
title: Room Temperature Ultraviolet Nanowire Nanolasers
venue: Science
year: 2001

author_names: Michael H Huang

Samuel S Mao

Henning Feick

Haoquan Yan

Yiying Wu

Hannes Kind

Eicke R Weber

Richard E Russo

Peidong Yang
title: Room Temperature Ultraviolet Nanowire Nanolasers.
year: 2001

abstract: Well ordered nanowires of the hexagonal wurtzite ZnO having an average diameter of 80 nm, a typical length of 12 mm, and a mean packing density of 7.5 nanowires mm 2 have been directly grown on Zn foil in a preferred [0001] direction by a hydrothermal process and employed for room temperature ultraviolet nanolasers. The lasing action of arrayed ZnO nanowires has been observed from 370 to 400 nm with threshold irradiance of 25 kW cm 2. Photoluminescence decays biexponentially: the fast component is attributed to free exciton decay, and the slow one is to bound exciton decay. The amplitude of the fast component increases whereas its lifetime decreases with the increment of threshold irradiance, suggesting that ZnO nanowire arrays undergo a change in the lasing mechanism from exciton exciton scattering to electron hole plasma recombination.
author_names: Jong-Yeob Kim

Hyeok Jeong

Du-Jeon Jang
title: Hydrothermal fabrication of well ordered ZnO nanowire arrays on Zn foil: room temperature ultraviolet nanolasers
year: 2011

abstract: Nanolasers with ultra compact footprint can provide high intensity coherent light, which can have various potential applications in high capacity signal processing, biosensing, and sub wavelength imaging. Among various nanolasers, those lasers with cavities surrounded with metals have shown to have superior light emission properties due to the surface plasmon effect providing better field confinement capability and allowing exotic light matter interaction. In this study, we realize a robust ultraviolet ZnO nanolaser by using silver to strongly shrink the mode volume. The nanolaser operated at room temperature shows several distinct features including an extremely small mode volume down to 4.2x10 3l3, large Purcell factor of 20, and group index of 80, which ensures strong interaction with the exciton in the nanowire. Meanwhile, our current experimental results showed that the quality of metal play an important role in laser operation. In this report, I will also demonstrate the stable and low threshold lasing action by using metal grown by molecular beam epitaxy and dielectric layer by atomic layer deposition.
author_names: Tien-Chang Lu
title: Robust and ultracompact room temperature operated surface plasmon polariton nanolasers
venue: 2016 Progress in Electromagnetic Research Symposium (PIERS)
year: 2016

abstract: Multi photon absorption pumped ultraviolet ZnO nanolasers were demonstrated with femtosecond pulses at room temperature. Time resolved photoluminescence revealed that the exciton collision effect played an important role in the nonlinear lasing mechanisms.
title: Multi photon route to ultraviolet nanowire lasers
venue: 2007 Quantum Electronics and Laser Science Conference
year: 2007

abstract: Multi photon absorption pumped ultraviolet ZnO nanolasers were demonstrated with femtosecond pulses at room temperature. Time resolved photoluminescence revealed that the exciton collision effect played an important role in the nonlinear lasing mechanisms.
author_names: Chunfeng Zhang

Zhiwei Dong

Kang-Jun Liu

Guanjun You

Shi-xiong Qian
title: Multi photon route to ultraviolet nanowire lasers
venue: QELS 2007
year: 2007

abstract: Nanolasers with an ultracompact footprint can provide high intensity coherent light, which can be potentially applied to high capacity signal processing, biosensing, and subwavelength imaging. Among various nanolasers, those with cavities surrounded by metals have been shown to have superior light emission properties because of the surface plasmon effect that provides enhanced field confinement capability and enables exotic light matter interaction. In this study, we demonstrated a robust ultraviolet ZnO nanolaser that can operate at room temperature by using silver to dramatically shrink the mode volume. The nanolaser shows several distinct features including an extremely small mode volume, a large Purcell factor, and a slow group velocity, which ensures strong interaction with the exciton in the nanowire.
author_names: Yu Hsun Chou

Bo-Tsun Chou

Chih-Kai Chiang

Ying-Yu Lai

C Yang

Hong Li

Tzy-Rong Lin

Chien Chung Lin

H C Kuo

Shing-chung Wang

Tien-Chang Lu
title: Ultrastrong Mode Confinement in ZnO Surface Plasmon Nanolasers.
venue: ACS nano
year: 2015

abstract: Abstract. One dimensional compound semiconductor nanolasers, especially nanowire (NW) based nanolasers utilizing III nitride (AlGaInN) materials system, are an emerging and promising area of research. Significant achievements have been made in developing III nitride NW lasers with emission wavelengths from the deep ultraviolet (UV) to the near infrared spectral range. The types of lasers under investigation include Fabry Perot, photonic crystal, plasmonic, ring resonator, microstadium, random, polariton, and two dimensional distributed feedback lasers. The lasing thresholds vary by several orders of magnitude, which are a direct consequence of differing NW dimensions, quality of the NWs, characteristics of NW cavities, and coupling with the substrate. For electrically injected, such as ultralow threshold and continuous wave III nitride NW lasers that can operate at room temperature, the following obstacles remain: carrier loss mechanisms including defect related nonradiative surface recombination, electron overflow, and poor hole transport; low radiative recombination efficiency and high surface recombination; poor thermal management; and highly resistive ohmic contacts on the p layer. These obstacles must be overcome to fully realize the potential of these lasers.
author_names: Shamsul Arafin

Xianhe Liu

Zetian Mi
title: Review of recent progress of III nitride nanowire lasers
year: 2013

abstract: Ultraviolet lasing from single zinc oxide nanowires is demonstrated at room temperature. Near field optical microscopy images quantify the localization and the divergence of the laser beam. The linewidths, wavelengths, and power dependence of the nanowire emission characterize the nanowire as an active optical cavity. These individual nanolasers could serve as miniaturized light sources for microanalysis, information storage, and optical computing.
author_names: Justin C Johnson

Haoquan Yan

Richard D Schaller

Louis H Haber

+ and Richard J Saykally

Peidong Yang
title: Single Nanowire Lasers
year: 2001

abstract: Rationally controlled growth of inorganic semiconductor nanowires is important for their applications in nanoscale electronics and photonics. In this article, we discuss the rational growth, physical properties, and integration of nanowires based on the results from the authors' laboratory. The composition, diameter, growth position, and orientation of the nanowires are controlled based on the vapor solid liquid (VLS) crystal growth mechanism. The thermal stability and optical properties of these semiconductor nanowires are investigated. Particularly, ZnO nanowires with well defined end surfaces can function as room temperature ultraviolet nanolasers. In addition, a novel microfluidic assisted nanowire integration (MANI) process was developed for the hierarchical assembly of nanowire building blocks into functional devices and systems.
author_names: Yiying Wu

Haoquan Yan

Michael Huang

Benjamin M Messer

Jae Hee Song

Peidong Yang
title: Inorganic semiconductor nanowires: rational growth, assembly, and novel properties.
venue: Chemistry
year: 2002