Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Chun-Nien Liu"'
Autor:
Hong-Wei Huang, Chien-Wei Huang, Yi-Chian Chen, Wei-Chih Cheng, Chun-Nien Liu, Chia-Chin Chiang
Publikováno v:
Ceramics, Vol 7, Iss 3, Pp 1147-1158 (2024)
In this study, we demonstrate the high luminous efficacy of 118 lm/W and the high reliability of white LEDs (WLEDs) through 450 °C thermal aging, utilizing four-inch YAG: Ce3+ phosphor-in-glass (PiG) plates designed for vehicle headlights. The sinte
Externí odkaz:
https://doaj.org/article/5860b25f1ee7455f98bc19cdc4c7e00c
Autor:
Hong-Wei Huang, Chien-Wei Huang, Yi-Chian Chen, Hsing-Kun Shih, Wei-Chih Cheng, Chun-Nien Liu, Chia-Chin Chiang
Publikováno v:
Micromachines, Vol 15, Iss 8, p 946 (2024)
A novel five-surface phosphor-in-glass (FS-PiG) structure for high illumination and excellent color uniformity in large-view scale LEDs for sensor light source application is demonstrated. YAG phosphor (Y3Al5O12:Ce3+) was uniformly mixed with ceramic
Externí odkaz:
https://doaj.org/article/118fecea64134cb3b3192c16f7ba1075
Autor:
Chien-Wei Huang, Chun-Nien Liu, Sheng-Chuan Mao, Wan-Shao Tsai, Zingway Pei, Charles W. Tu, Wood-Hi Cheng
Publikováno v:
Sensors, Vol 24, Iss 6, p 1897 (2024)
A new scheme presents MEMS-based LiDAR with synchronized dual-laser beams for detection range enhancement and precise point-cloud data without using higher laser power. The novel MEMS-based LiDAR module uses the principal laser light to build point-c
Externí odkaz:
https://doaj.org/article/9577388481084f94b2be421a51bd2919
Autor:
Chun-Nien Liu, Kai-Chieh Chang, Chia-Ling Tsai, Wei-Chih Cheng, Tien-Tsorng Shih, Sheng-Lung Huang, Wood-Hi Cheng
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 3, Pp 1-6 (2023)
A record net gain of 17-dB has been demonstrated in a 300-nm broadband single-mode Cr-doped crystalline core fiber (CCF) with a 19-μm core diameter and 18-cm fiber length. The gain-per-unit-length of the CCF, which is an impressive 94 dB/m, is signi
Externí odkaz:
https://doaj.org/article/95bb7808efaa4218a1b73c96779515b3
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 3, Pp 1-10 (2021)
High color rendering index (CRI) of 97 and wide correlated-color temperatures (CCTs) range of 2100–7600 K in white light-emitting diodes (WLEDs) employing the two-inch diameter of CaAlSiN3: Eu2+ (red phosphor) and Lu3Al5O12: Ce3+ (green phosphor) c
Externí odkaz:
https://doaj.org/article/5066b49d6d38448e8edc977db15069eb
Autor:
Chun-Nien Liu, Jhuo-Wei Li, Yung-Hsiang Tung, Chun-Chuen Yang, Wei-Chih Cheng, Sheng-Lung Huang, Wood-Hi Cheng
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-11 (2020)
Tetrahedral chromium (Cr4+)-ions is the main contributor to gain in the broadband single-mode Cr-doped crystalline core fibers (SCCFs). We have demonstrated a gross gain of 8-dB on a length of 27-cm for a 300-nm broadband SCCF using a thermal anneali
Externí odkaz:
https://doaj.org/article/ad62e797c8534533921c04de9d968802
Publikováno v:
AIP Advances, Vol 12, Iss 1, Pp 015018-015018-6 (2022)
We demonstrate the generation of a laser hotspot by a laser-excited single crystal phosphor (SCP) converter layer in a white LED for producing a wide field of view (FOV) and high enhanced central brightness (ECB) for an adaptive-driving-beam (ADB) he
Externí odkaz:
https://doaj.org/article/b257570257f24ad0ae9588507a968df3
Autor:
Zhen Tian, Liqiang Zhang, Haimiao Zhou, Dong Yan, Cheng-Kai Yao, Nan-Kuang Chen, Shien-Kuei Liaw, Chun-Nien Liu, Huishan Yu, Min Zhao
Publikováno v:
IEEE Access, Vol 7, Pp 170185-170191 (2019)
We report a harmonic dissipative soliton 1.93 μm thulium fiber laser based on a tungsten disulfide (WS2) saturable absorber (SA) in the anomalous dispersion regime. The multilayer WS2 nanosheets were prepared by liquid phase exfoliation method and t
Externí odkaz:
https://doaj.org/article/13fd959de2ce4ebfa9cbaaf4b0ac9f4e
Autor:
Chun-Nien Liu, 劉浚年
104
We report the fabrication and characteristics of Ce-doped fibers (CeDFs) and Cr-doped fibers (CDFs) based on drawing tower technique. The CeDFs show an emission from 480 to 650 nm, 600 to 800 nm, and 700 to 950 nm with a power density of 21.
We report the fabrication and characteristics of Ce-doped fibers (CeDFs) and Cr-doped fibers (CDFs) based on drawing tower technique. The CeDFs show an emission from 480 to 650 nm, 600 to 800 nm, and 700 to 950 nm with a power density of 21.
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/03928698158792580487
Autor:
Chun-nien Liu, 劉浚年
100
The success in fabrication of Cr-doped fibers (CDFs) with fluorescence of Cr3+ by powder-in-tube (PIT) method equipped with drawing-tower process is demonstrated. However, the fabrication by using powder-in-tube (PIT) with redrawing techniqu
The success in fabrication of Cr-doped fibers (CDFs) with fluorescence of Cr3+ by powder-in-tube (PIT) method equipped with drawing-tower process is demonstrated. However, the fabrication by using powder-in-tube (PIT) with redrawing techniqu
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/22852379766035475601