Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Cheng-Feng Yue"'
Publikováno v:
Applied Optics. 62:3182
This paper introduces the path integral (PI) to the analysis of radially polarized (RP) beams’ tight focusing problem. The PI makes the contribution of each incident ray on the focal region visible and then makes it possible to choose the filter’
Publikováno v:
Open Physics, Vol 17, Iss 1, Pp 358-363 (2019)
To analyze the focal characteristics of cylindrically polarized beams, a visual analysis method is proposed. As known, the focal field can be described by three mutually perpendicular components, each one is the total contribution of all parts of the
Publikováno v:
Metals and Materials International. 24:307-313
The effects of an addition of 0–2 wt% Nd on thermal stability of 0–3 wt% Ca-containing modified AZ71 magnesium alloys was investigated. The ignition temperature was found to increase from that of AZ71, 574, to 825 °C with the addition of 0.5 wt%
Publikováno v:
SPIE Proceedings.
Utilizing LED light source modules with 3 different RGB colors, the illumination effect of different wavelengths had been investigated on the growth curve of the same kind of micro algae. It was found that the best micro algae culturing status came o
Publikováno v:
SPIE Proceedings.
To study the feasibility and quality of recycled glass phosphor waste for LED packaging, the experiments were conducted to compare optical characteristics between fresh color conversion layer and that made of recycled waste. The fresh color conversio
Publikováno v:
SPIE Proceedings.
For both high conversion efficiency and thermal stability, glass-based phosphor-converted white light-emitting diodes (GBPC-WLEDs) were packaged for optic characterization study. Fabricated by flip chip, glass based PC-WLEDs were found Tj dramaticall
Autor:
Chao-Chen Chang, Tsung-Chin Cheng, Chih-I Wu, Ang-Sheng Chou, Cheng-Feng Yue, Po-Han Wang, Ting-An Ku, Ken-Tsung Wong, Po-Han Chang, Chia-Wei Liu, Kuo-You Huang
Publikováno v:
Journal of Applied Physics. 123:024303
In this work, we report a simple method for solution-processed organic light emitting devices (OLEDs), where single-layer graphene acts as the anode and the hexa-peri-hexabenzocoronene exfoliating agent (HBC-6ImBr) provides surface modification. In S
Publikováno v:
SPIE Proceedings.
Human susceptibility to visual discomfort of solid-state lighting was investigated by statistically analyzing for commercial phosphor-converted white light-emitting diodes (PC-WLEDs) with considering optical characteristics such as correlated color t
Autor:
Yi-Cheng Hsu, Wei-Chih Cheng, Shi-Sheng Hu, Chun-Chin Tsai, Jyun-Sian Liao, Wood-Hi Cheng, Cheng-Feng Yue
Publikováno v:
SPIE Proceedings.
It was reported that sol-gel processed SiO 2 -coating effects of Ce 3+ : YAG phosphor on and thermal reliability enhancements in terms of quantum efficiency and optical characteristics. This study found improved light extraction efficiencies of glass
Publikováno v:
2010 International Symposium on Computer, Communication, Control and Automation (3CA).
In this paper, a new application strategy of diffractive optical elements (DOEs) has been proposed. The research combined vertical-cavity surface emitting laser (VCSEL) with diffractive optical elements into a single opto-electric semiconductor devic