Journal ArticleDOI
Amorphous silica nanowires: Intensive blue light emitters
Dapeng Yu,Q. L. Hang,Y. Ding,Hongzhou Zhang,Z. G. Bai,Jing Jing Wang,Yinghua Zou,Wei Qian,Guangcheng Xiong,S. Q. Feng +9 more
TLDR
In this article, a large-scale synthesis of silica nanowires (SiONWs) using an excimer laser ablation method was reported. The SiONWs emit stable and high brightness blue light at energies of 2.65 and 3.0 eV.Abstract:
We report large-scale synthesis of silica nanowires (SiONWs) using an excimer laser ablation method. Silica was produced in the form of amorphous nanowires at a diameter of ∼15 nm and a length up to hundreds micrometers. The SiONWs emit stable and high brightness blue light at energies of 2.65 and 3.0 eV. The intensity of the emission is two orders of magnitude higher than that of porous silicon. The SiONWs may have potential applications in high-resolution optical heads of scanning near-field optical microscope or nanointerconnections in future integrated optical devices.read more
Citations
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PatentDOI
Subwavelength-diameter silica wires for low-loss optical waveguiding
TL;DR: In this article, a two-step process is described to generate a micrometer sized diameter silica preform fiber, and then the preform is drawn while coupled to a support element to form a nanometer sized diameter fiber.
Journal ArticleDOI
Growth of nanowires
Ning Wang,Yuan Cai,Ruiqin Zhang +2 more
TL;DR: In this paper, the status of research on the formation of nanowire structures via highly anisotropic growth of nanocrystals of semiconductor and metal oxide materials with an emphasis on the structural characterization of the nucleation, initial growth, defects and interface structures.
Journal ArticleDOI
Optical fibre nanowires and microwires: a review
TL;DR: In this paper, the authors review the fundamentals and applications of nanowires and microwires manufactured from optical fibres and present a variety of enabling properties, including large evanescent fields, flexibility, configurability, high confinement, robustness and compactness.
Journal ArticleDOI
Optical fiber nanowires and microwires: fabrication and applications
Gilberto Brambilla,Fei Xu,Peter Horak,Yongmin Jung,F. Koizumi,Neil P. Sessions,Elena Koukharenko,Xian Feng,Ganapathy Senthil Murugan,James S. Wilkinson,David J. Richardson +10 more
TL;DR: In this article, a review of the manufacturing of optical fiber nanowires is presented, with a particular emphasis on their applications, and a solution to optical degradation issues is presented.
Journal ArticleDOI
Electron-beam-assisted superplastic shaping of nanoscale amorphous silica.
Kun Zheng,Cheng-Cai Wang,Yongqiang Cheng,Yonghai Yue,Xiaodong Han,Ze Zhang,Zhi-Wei Shan,Scott X. Mao,Miaomiao Ye,Yadong Yin,Evan Ma,Evan Ma +11 more
TL;DR: By exposing amorphous silica nanostructures to a low-intensity electron beam, it is possible to achieve dramatic shape changes, including a superplastic elongation of 200% for nanowires.
References
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Extraordinary optical transmission through sub-wavelength hole arrays
Thomas W. Ebbesen,Thomas W. Ebbesen,Henri J. Lezec,H. F. Ghaemi,Tineke Thio,Peter A. Wolff,Peter A. Wolff +6 more
TL;DR: In this article, the optical properties of submicrometre cylindrical cavities in metallic films were explored and it was shown that arrays of such holes display highly unusual zero-order transmission spectra at wavelengths larger than the array period, beyond which no diffraction occurs.
Journal ArticleDOI
Vapor‐liquid‐solid mechanism of single crystal growth
R. S. Wagner,W. C. Ellis +1 more
Journal ArticleDOI
A laser ablation method for the synthesis of crystalline semiconductor nanowires
TL;DR: Studies carried out with different conditions and catalyst materials confirmed the central details of the growth mechanism and suggest that well-established phase diagrams can be used to predict rationally catalyst materials and growth conditions for the preparation of nanowires.
Journal ArticleDOI
Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure blue‐light‐emitting diodes
Abstract: Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure (DH) blue‐light‐emitting diodes(LEDs) with the luminous intensity over 1 cd were fabricated As an active layer, a Zn‐doped InGaN layer was used for the DH LEDs The typical output power was 1500 μW and the external quantum efficiency was as high as 27% at a forward current of 20 mA at room temperature The peak wavelength and the full width at half‐maximum of the electroluminescence were 450 and 70 nm, respectively This value of luminous intensity was the highest ever reported for blue LEDs
Journal ArticleDOI
Near-Field Optics: Microscopy, Spectroscopy, and Surface Modification Beyond the Diffraction Limit
Eric Betzig,Jay K. Trautman +1 more
TL;DR: The near-field optical interaction between a sharp probe and a sample of interest can be exploited to image, spectroscopically probe, or modify surfaces at a resolution inaccessible by traditional far-field techniques, resulting in a technique of considerable versatility.