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Proceedings Paper

Recent advance in fiber SERS sensors
Author(s): Claire Gu; Chao Shi; He Yan; Debraj Ghosh; Leo Seballos; Shaowei Chen; Jin Z. Zhang
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Paper Abstract

Fiber SERS (surface enhanced Raman scattering) sensors have attracted significant interest in molecule sensing. In this paper, we briefly review our previous work on various configurations for fiber SERS probes, including side-polished fibers and various photonic crystal fibers (PCFs). In addition, we will report our recent experiments on a double substrate "sandwich" structure for fiber SERS probe. The approach is to coat one SERS substrate on the tip of a multimode fiber and mix the second substrate in solution with the target analyte molecules. Upon dipping the coated fiber probe into the solution, randomly formed structures of the two substrates will sandwich the analyte molecules in between. Our results show that the "sandwich" configuration exhibits significantly higher sensitivity than direct SERS detection.

Paper Details

Date Published: 25 August 2008
PDF: 12 pages
Proc. SPIE 7056, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II, 70560H (25 August 2008); doi: 10.1117/12.796874
Show Author Affiliations
Claire Gu, Univ. of California, Santa Cruz (United States)
Chao Shi, Univ. of California, Santa Cruz (United States)
He Yan, Univ. of California, Santa Cruz (United States)
Debraj Ghosh, Univ. of California, Santa Cruz (United States)
Leo Seballos, Univ. of California, Santa Cruz (United States)
Shaowei Chen, Univ. of California, Santa Cruz (United States)
Jin Z. Zhang, Univ. of California, Santa Cruz (United States)


Published in SPIE Proceedings Vol. 7056:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II
Shizhuo Yin; Ruyan Guo, Editor(s)

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