U-shaped fiber optics fabricated with a femtosecond laser and integrated into a localized plasmon resonance biosensor

Wei Te Wu*, Chun Ping Jen, Tzu Chien Tsao, Wei Chih Shen, Chung-Wei Cheng, Chien Hsing Chen, Jaw Luen Tang, Wan Yun Li, Lai Kwan Chau

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

A novel fiber-optic localized plasma resonance (FO-LPR) biosensor composed of a U-shaped optical fiber was proposed and demonstrated in the present study. The U-shaped optical fiber was fabricated by a femtosecond laser micromachining system. It was 105 μm in depth measured from the surface of the polymer jacket layer and 80 μm in width in the jacket layer. After treatment of annealing, the mean roughness of the surface was 342.24 nm as determined by AFM. The exposed surface of the U-shaped fiber was modified with self-assembled gold colloids to produce the FO-LPR sensor. Preliminary results show that the colloidal Au-modified U-shaped fiber by transmission power interrogation has a sensitivity of 1.768×10-3 RIU.

Original languageEnglish
Title of host publication2009 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, MEMS/MOEMS 2009
Pages127-131
Number of pages5
StatePublished - 23 Sep 2009
Event2009 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, MEMS/MOEMS 2009 - Rome, Italy
Duration: 1 Apr 20093 Apr 2009

Publication series

NameDTIP of MEMS and MOEMS - Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS

Conference

Conference2009 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, MEMS/MOEMS 2009
CountryItaly
CityRome
Period1/04/093/04/09

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