Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Yi-Kai Cheng"'
Autor:
Yi-Kai Cheng, 鄭伊凱
89
Optical system design is the process to build an imaging or a focusing system. In early days the optical designer didn’t have an aid of computer, and can only do the ray trace job by his hands. Now a days depending on the rapidly developmen
Optical system design is the process to build an imaging or a focusing system. In early days the optical designer didn’t have an aid of computer, and can only do the ray trace job by his hands. Now a days depending on the rapidly developmen
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/39163864637423335018
Publikováno v:
Nanoscale Advances. 4:2339-2345
The addition of two-dimensional (2D) materials into polymers can improve their mechanical properties. In particular, graphene oxide (GO) and hexagonal boron nitride (h-BN) are expected to be potential nanoplatelet additives for polymers. Interactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::431d0026354b8fb2edccd517072a7434
https://doi.org/10.1039/d2na00078d
https://doi.org/10.1039/d2na00078d
Publikováno v:
FlatChem. 39:100489
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a442d666b84932026548f6246b98f74
https://doi.org/10.1016/j.flatc.2023.100489
https://doi.org/10.1016/j.flatc.2023.100489
Autor:
Chen-Hsiung Hung, Hsiao-Wen Zan, Yu Chao Lin, Wen-Chang Chen, Hsin-Fei Meng, Henrich Cheng, Sheng-fu Horng, Wun Yan Hong, May Jywan Tsai, Jia Hao Syu, Yu-Cheng Chiu, Hsing Ping Wang, Yi Kai Cheng, Gao Fong Chang
Publikováno v:
Advanced Functional Materials. 23:1566-1574
meso -2,6-Dichlorophenyltripyrrinone (TPN-Cl 2 ), a probe molecule for zinc II ions, is dispersed in a polymer host. The red fl uorescence peak at 620 nm appears when the molecule forms a complex with zinc at its center. TPNCl 2 has a high selectivit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::230e65c68bd11c3990a2da8469792591
https://doi.org/10.1002/adfm.201201242
https://doi.org/10.1002/adfm.201201242
Publikováno v:
Optics Communications. 282:1976-1983
A recent study proposed the concept of a leakage-free bent lightpipe with an equiangular-spiral shape [S.-C. Chu, J.-L. Chern, Opt. Lett. 30 (2005) 3006]. This paper extends the design of a leakage-free equiangular-spiral bent lightpipe with arbitrar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bc523856e6c0bde4eca41a8cf4102ac
https://doi.org/10.1016/j.optcom.2009.02.012
https://doi.org/10.1016/j.optcom.2009.02.012
Autor:
Yi-Kai Cheng, Jyh-Long Chern
Publikováno v:
Optical Review. 16:199-203
It is shown that by using a wedge plate, the incident direction of light propagation can be rotated as necessary while still preserving beam polarization. The basic conditions of these preservations of polarization are deduced. For numerical demonstr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c41c421a4518b332ecb37ea4d24cf160
https://doi.org/10.1007/s10043-009-0036-1
https://doi.org/10.1007/s10043-009-0036-1
Autor:
Yu-Hung Lien, A-Chuan Hsu, Ching-Fu Chen, Jow-Tsong Shy, K. H. Chen, Shich-Chuan Wu, Yi-Kai Cheng, Jyh-Long Chern, Hao Chang
Publikováno v:
Japanese Journal of Applied Physics. 43:L176-L179
We experimentally investigated the resonance effect of planar metallic split ring resonators (SRRs) in the far-infrared region (FIR) (~10.6 µm). Experimental results indicated that they exhibit resonance around 10.6 µm, implying negative permeabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c86b8a91efba08117f3244751b9d5fa6
https://doi.org/10.1143/jjap.43.l176
https://doi.org/10.1143/jjap.43.l176
Autor:
Jyh-Long Chern, Yi-Kai Cheng
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 25(7)
This study shows that by using a wedge plate the incident direction of light propagation can be rotated as desired while still preserving beam polarization. This study also deduces the basic condition of this preservation of polarization. Two typical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a98c844e36c5737bce27b26217f5c21
https://pubmed.ncbi.nlm.nih.gov/18594611
https://pubmed.ncbi.nlm.nih.gov/18594611
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 24(9)
Different geometric shapes of light pipes cause different irradiance distributions. We analytically explore the irradiance distributions of on-axis Lambertian pointlike sources in polygonal total-internal-reflection (TIR) straight light pipes. It is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e001ad3a0519dd1b3ddc3b4141f0229
https://pubmed.ncbi.nlm.nih.gov/17767244
https://pubmed.ncbi.nlm.nih.gov/17767244
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 24(8)
The aberration characteristics of a wedge-plate display optical system are analyzed. The study shows that a kink-like feature is inherent in the ray-intercept curve due to either the onset of the dark zone in imaging or the coincidence of the ray dir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44297bd7327aa2ea3496e56e00461f46
https://pubmed.ncbi.nlm.nih.gov/17621338
https://pubmed.ncbi.nlm.nih.gov/17621338