Title :
Polydimethylsiloxane Nano-Hemispheres Array for Color Separation
Author :
Kee, Jack Sheng ; Park, Mi Kyoung ; Wong, Chee Chung ; Kao, Linus Tzu-Hsiang ; Yu, Mingbin ; Lo, Guo Qiang
Author_Institution :
Inst. of Microelectron., A*STAR, Singapore, Singapore
Abstract :
We demonstrate an array of poly(dimethylsiloxane) (PDMS) nano-hemisphere for color separation by using soft lithography techniques. Each array of a PDMS nano-hemisphere has an area of 1080 μm × 820 μm with well-defined period and diameter. The diameter of each nano-hemisphere and period between nano-hemispheres can be varied to produce the desired color. The periods and diameters are (1400, 1120), (1500, 1040), and (1600, 960) nm for red, yellow, and green colors, respectively. The reflection spectrum obtained from coupling between an incident light and the nano-hemispheres array can be utilized for fluorescence spectroscopy as filters or spectral analysis for lab-on-a-chip devices.
Keywords :
fluorescence spectroscopy; lab-on-a-chip; nanolithography; optical fabrication; soft lithography; spectral analysis; color separation; filters; fluorescence spectroscopy; incident light; lab-on-a-chip devices; polydimethylsiloxane nano-hemispheres array; reflection spectrum; size 1040 nm; size 1080 mum; size 1120 nm; size 1400 nm; size 1500 nm; size 1600 nm; size 820 mum; size 960 nm; soft lithography; spectral analysis; Arrayed waveguide gratings; Arrays; Color; Fabrication; Nanobioscience; Optical filters; Silicon; Micromachining; optical device fabrication; periodic structures; polydimethylsiloxane (PDMS);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2203298
