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Proceedings Paper

The study of structural color filter based on periodic nanohole arrays for bio-detection
Author(s): Seunguk Kim; Jeonghee Shin; Seungjun Yoo; Samhwan Kim; Byoungok Jeon; Cheil Moon; Jae-Eun Jang
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Paper Abstract

A nanostructure which induces localized surface plasmon resonance (LSPR) can be utilized in visible light and near infrared (NIR) regions and it shows promising features as a bio-detector because LSPR state is changed easily by different bio-related materials. Owing to transparent property of many biomolecules as well as diluted states in base solutions, it is hard to distinguish each other by eye or microscope analysis. However, difference in molecular structure and composition makes difference in optical characteristics such as a refractive index or a dielectric constant. Therefore, our LSPR-based nanohole array structure which has high sensitivity to detect small changes in optical characteristics can be a great candidate for a bio detector. Here, we fabricated structural color filters (SCFs) to detect wavelength shifts for several biomolecules and optimized the nanohole array structures for high sensitivity. Periodic nanohole arrays were designed to present resonance peaks in visible light region for optical analysis and fabricated in Au or Al thin film layer. The spectral shifts were detected caused by biomolecules.

Paper Details

Date Published: 8 July 2015
PDF: 4 pages
Proc. SPIE 9523, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2015, 95230F (8 July 2015); doi: 10.1117/12.2189421
Show Author Affiliations
Seunguk Kim, Daegu Gyeongbuk Institute of Science and Technology (Korea, Republic of)
Jeonghee Shin, Daegu Gyeongbuk Institute of Science and Technology (Korea, Republic of)
Seungjun Yoo, Daegu Gyeongbuk Institute of Science and Technology (Korea, Republic of)
Samhwan Kim, Daegu Gyeongbuk Institute of Science and Technology (Korea, Republic of)
Byoungok Jeon, Daegu Gyeongbuk Institute of Science and Technology (Korea, Republic of)
Cheil Moon, Daegu Gyeongbuk Institute of Science and Technology (Korea, Republic of)
Jae-Eun Jang, Daegu Gyeongbuk Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 9523:
International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2015
Donghyun Kim; Min-Gon Kim; Seung-Han Park, Editor(s)

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