Fabrication of plasmonic nanopore by using electron beam irradiation for optical bio-sensor

Seong Soo Choi; Myoung Jin Park; Chul Hee Han; Seh Joong Oh; Nam Kyou Park; Doo Jae Park; Soo Bong Choi; Yong-Sang Kim

doi:10.1117/12.2264986

16 May 2017 Fabrication of plasmonic nanopore by using electron beam irradiation for optical bio-sensor

Seong Soo Choi, Myoung Jin Park, Chul Hee Han, Seh Joong Oh, Nam Kyou Park, Doo Jae Park, Soo Bong Choi, Yong-Sang Kim

Proceedings Volume 10231, Optical Sensors 2017; 102310A (2017) https://doi.org/10.1117/12.2264986
Event: SPIE Optics + Optoelectronics, 2017, Prague, Czech Republic

Abstract

The Au nano-hole surrounded by the periodic nano-patterns would provide the enhanced optical intensity. Hence, the nano-hole surrounded with periodic groove patterns can be utilized as single molecule nanobio optical sensor device. In this report, the nano-hole on the electron beam induced membrane surrounded by periodic groove patterns were fabricated by focused ion beam technique (FIB), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). Initially, the Au films with three different thickness of 40 nm, 60 nm, and 200 nm were deposited on the SiN film by using an electron beam sputter-deposition technique, followed by removal of the supporting SiN film. The nanopore was formed on the electron beam induced membrane under the FESEM electron beam irradiation. Nanopore formation inside the Au aperture was controlled down to a few nanometer, by electron beam irradiations. The optical intensities from the biomolecules on the surfaces including Au coated pyramid with periodic groove patterns were investigated via surface enhanced Raman spectroscopy (SERS). The fabricated nanopore surrounded by periodic patterns can be utilized as a next generation single molecule bio optical sensor.

Conference Presentation

Citation Download Citation

Seong Soo Choi, Myoung Jin Park, Chul Hee Han, Seh Joong Oh, Nam Kyou Park, Doo Jae Park, Soo Bong Choi, and Yong-Sang Kim "Fabrication of plasmonic nanopore by using electron beam irradiation for optical bio-sensor", Proc. SPIE 10231, Optical Sensors 2017, 102310A (16 May 2017); https://doi.org/10.1117/12.2264986

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