Semantic Scholar Open Access 2020 38 sitasi

High-Q guided mode resonance sensors based on shallow sub-wavelength grating structures

Yi Zhou Zhihe Guo Wenjie Zhou Shuai Li Zhiran Liu +2 lainnya

Abstrak

We present a systematic investigation on the enhancement of the quality (Q) factors for guided-mode resonance (GMR) sensors with shallow subwavelength grating structures. By introducing the coupled-mode model, a theoretical high-Q factor can be achieved by choosing the proper geometric structure. Based on this method, a GMR sensor with a Q factor up to 8000, which is an order of magnitude larger than those of typical GMR sensors with Q factors within 100 ∼ 300, was demonstrated experimentally. Besides, the approached GMR sensor achieved a bulk sensitivity of 135 nm RIU−1 with a high signal to noise ratio, which supports a detection limit of 1 ng ml−1 for bovine serum albumin detection. This high performance GMR sensor paves the way towards high-throughput industrial mass production, and shows great potential for other applications, such as optical filters, spectrometer, and bio-imaging.

Topik & Kata Kunci

Physics Medicine Materials Science

Penulis (7)

Yi Zhou

Zhihe Guo

Wenjie Zhou

Shuai Li

Zhiran Liu

Xuyang Zhao

Xiang Wu

Format Sitasi

APA MLA BibTeX

Zhou, Y., Guo, Z., Zhou, W., Li, S., Liu, Z., Zhao, X. et al. (2020). High-Q guided mode resonance sensors based on shallow sub-wavelength grating structures. https://doi.org/10.1088/1361-6528/ab8cf0

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Informasi Jurnal

Tahun Terbit: 2020
Bahasa: en
Total Sitasi: 38×
Sumber Database: Semantic Scholar
DOI: 10.1088/1361-6528/ab8cf0
Akses: Open Access ✓