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The study of structural color filter based on periodic nanohole arrays for bio-detection

Title
The study of structural color filter based on periodic nanohole arrays for bio-detection
Authors
Kim, Seung UkShin, Jeong HeeYoo, Seung JunKim, Sam HwanJeon, Byoung OkMoon, Che IlJang, Jae Eun
DGIST Authors
Kim, Seung Uk; Shin, Jeong Hee; Yoo, Seung Jun; Kim, Sam Hwan; Jeon, Byoung Ok; Moon, Che IlJang, Jae Eun
Issue Date
2015
Citation
2nd International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy, NBSIS 2015, 9523
Type
Conference
Article Type
Conference Paper
ISBN
9780000000000
ISSN
1605-7422
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. © 2015 SPIE.
URI
http://hdl.handle.net/20.500.11750/1747
DOI
10.1117/12.2189421
Publisher
SPIE
Related Researcher
Files:
There are no files associated with this item.
Collection:
Brain and Cognitive SciencesETC2. Conference Papers
Brain and Cognitive SciencesMoon Lab2. Conference Papers


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