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2 results on '"Jun Cong She"'

1. Silicon-Based Metalens with Zero Refractive Index

Author

Ming-Li Chang, Shao-Zeng Xu, Xin-Tao He, Jian-Wen Dong, Jun-Cong She, and Zhi-Zhen Huang

Subjects
Materials science, Silicon, business.industry, technology, industry, and agriculture, Physics::Optics, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, law.invention, Silicon based, 010309 optics, Lens (optics), Optics, Light propagation, chemistry, Negative refraction, law, 0103 physical sciences, Optoelectronics, 0210 nano-technology, business, Effective refractive index, Refractive index
Abstract

Zero-refractive-index metalens was designed and fabricated on silicon platform. Anomalous focusing effect was observed directly and the effective refractive index was quantitatively demonstrated. The device reveals potential applications for aberration-free lens and spectral detection.

Published
2016
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2. Growth and field-emission property of tungsten oxide nanotip arrays.

Author

Jun Zhou, Li Gong, Shao Zhi Deng, Jun Chen, Jun Cong She, Ning Sheng Xu, Rusen Yang, and Zhong Lin Wang

Subjects
TUNGSTEN oxides, FIELD emission, FLAT panel displays, MICROWAVE amplifiers, VACUUM microelectronics, NANOTUBES, SCANNING electron microscopy, X-ray spectroscopy, TRANSMISSION electron microscopy
Abstract

Large-area, quasialigned nanotips of tungsten oxide have been grown by a two-step high-temperature, catalyst-free, physical evaporation deposition process. The tungsten oxide nanotips are single crystalline with growth direction of [010]. The tungsten oxide nanotips exhibit excellent field-emission properties with a low threshold field (for an emission current density of 10 mA/cm2) ∼4.37 MV/m and uniform emission from the entire arrays, as well as high time stability. These results make tungsten oxide nanotip arrays a competitive candidate for field-emission displays. [ABSTRACT FROM AUTHOR]

Published
2005
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