Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Jinfa Ho"'
Autor:
Yejing Liu, Hao Wang, Jinfa Ho, Ryan C. Ng, Ray J. H. Ng, Valerian H. Hall-Chen, Eleen H. H. Koay, Zhaogang Dong, Hailong Liu, Cheng-Wei Qiu, Julia R. Greer, Joel K. W. Yang
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
The ability to print arbitrary colors and shapes in all three dimensions at microscopic length scales is still lacking. Here, the authors introduce a means to produce three-dimensionally-printed photonic crystals with a periodicity as small as 280 nm
Externí odkaz:
https://doaj.org/article/30e1a36420d1486ca409b1b18a35eb20
Miniaturizing color-sensitive photodetectors via hybrid nanoantennas toward submicrometer dimensions
Autor:
Jinfa Ho, Zhaogang Dong, Hai Sheng Leong, Jun Zhang, Febiana Tjiptoharsono, Soroosh Daqiqeh Rezaei, Ken Choon Hwa Goh, Mengfei Wu, Shiqiang Li, Jingyee Chee, Calvin Pei Yu Wong, Arseniy I. Kuznetsov, Joel K. W. Yang
Publikováno v:
Science Advances. 8
Digital camera sensors use color filters on photodiodes to achieve color selectivity. As the color filters and photosensitive silicon layers are separate elements, these sensors suffer from optical cross-talk, which sets limits to the minimum pixel s
Autor:
Sergey Gorelik, Ping Bai, Jinfa Ho, Arseniy I. Kuznetsov, Joel K. W. Yang, Soroosh Daqiqeh Rezaei, Zhaogang Dong, Ramón Paniagua-Domínguez, Emmanuel Lassalle, Febiana Tjiptoharsono, Darren C. J. Neo, Johnathan Yik
Publikováno v:
Nano Letters. 21:4853-4860
Dielectric nanostructures have demonstrated optical antenna effects due to Mie resonances. Previous work has exhibited enhancements in absorption, emission rates and directionality with practical limitations. In this paper, we present a Si mix antenn
Autor:
Zhaogang Dong, Lei Jin, Soroosh Daqiqeh Rezaei, Hao Wang, Yang Chen, Febiana Tjiptoharsono, Jinfa Ho, Sergey Gorelik, Ray Jia Hong Ng, Qifeng Ruan, Cheng-Wei Qiu, Joel K. W. Yang
Publikováno v:
Science Advances. 8
While structural colors are ubiquitous in nature, saturated reds are mysteriously absent. This long-standing problem of achieving Schrödinger’s red demands sharp transitions from “stopband” to a high-reflectance “passband” with total suppr
Autor:
Ray J. H. Ng, Zhaogang Dong, Joel K. W. Yang, Seeram Ramakrishna, Jinfa Ho, Eleen H. H. Koay, Soroosh Daqiqeh Rezaei
Publikováno v:
ACS Nano. 13:3580-3588
Unlike dye-based colorants, for which dilution results in a decrease in color saturation, a reduction of nanostructure density in plasmonic prints could increase color saturation instead. This interesting observation can be explained by the absorptio
Publikováno v:
Nano letters. 20(6)
The direct patterning of colors using the bombardment of a focused beam of electrons onto a thin-film stack consisting of poly(methyl methacrylate) coated with a thin nickel film is demonstrated. This direct electron-beam color printing approach crea
Autor:
Joel K. W. Yang, Christos Tserkezis, Andrivo Rusydi, Tao Wang, S. Yap, Jinfa Ho, N. Asger Mortensen, Febiana Tjiptoharsono, Zhaogang Dong, Xiao Chi, Dickson Thian
Publikováno v:
Dong, Z, Wang, T, Chi, X, Ho, J, Tserkezis, C, Yap, S L K, Rusydi, A, Tjiptoharsono, F, Thian, D, Mortensen, N A & Yang, J K W 2019, ' Ultraviolet Interband Plasmonics with Si Nanostructures ', Nano Letters, vol. 19, no. 11, pp. 8040-8048 . https://doi.org/10.1021/acs.nanolett.9b03243
Although Si acts as an electrical semiconductor, it has properties of an optical dielectric. Here, we revisit the behavior of Si as a plasmonic metal. This behavior was previously shown to arise from strong interband transitions that lead to negative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db675c769c51066fdd340b27ba9fb0bf
https://findresearcher.sdu.dk:8443/ws/files/158840518/Ultra_Violet_Interband_Plasmonics_With_Si_Nanostructures.pdf
https://findresearcher.sdu.dk:8443/ws/files/158840518/Ultra_Violet_Interband_Plasmonics_With_Si_Nanostructures.pdf
Autor:
Zhaogang Dong, Joel K. W. Yang, Jinfa Ho, Yuan Hsing Fu, Eleen H. H. Koay, Ye Feng Yu, Arseniy I. Kuznetsov, Vytautas Valuckas, Ramón Paniagua-Domínguez
Publikováno v:
ACS Nano. 12:8616-8624
A hybrid metal-dielectric nanoantenna promises to harness the large Purcell factor of metallic nanostructures while taking advantage of the high scattering directivity and low dissipative losses of dielectric nanostructures. Here, we investigate a co
Publikováno v:
ACS Photonics. 5:511-519
We extend the fabrication method of template-assisted metal dewetting (TeAMeD) to create near-infrared resonant nanostructures in an Au film without the need for etching or lift-off. TeAMeD has previously been used to generate high aspect-ratio sub-1
Autor:
Jinfa Ho, Arseniy I. Kuznetsov, Yuan Hsing Fu, Ramón Paniagua-Domínguez, Ye Feng Yu, Joel K. W. Yang, Sihao Wang, Zhaogang Dong
Publikováno v:
Nano Letters. 17:7620-7628
Localized optical resonances in metallic nanostructures have been increasingly used in color printing, demonstrating unprecedented resolution but limited in color gamut. Here, we introduce a new nanostructure design, which broadens the gamut while re