Dual microring resonators for polymeric waveguide optical biosensors fabrication

Mohd Salleh, Mohd Hazimin and Mohd Salleh, Mohd Haziq and Abdul Hadi, Muhammad Salihi (2016) Dual microring resonators for polymeric waveguide optical biosensors fabrication. In: Regional Conference on Science Technology & Social Sciences (RCSTSS2016), 4th-6th December 2016, Cameron Highlands, Pahang. (Unpublished)

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Abstract

In this work, we demonstrate the potential of fabricated dual microring resonator polymer waveguide as an optical biosensor. Visible wavelength region at 632 nm is used as a centre wavelength because it is commonly used in biological and chemical sensing for both label and label-free sensing. The double microring resonator waveguide structure is simulated using COMSOL Multiphysics optical design and analysis software. The results show that there is a transmission drop with a 3 dB bandwidth of 631.4 nm when the surrounding refractive index is 1.33. The specific wavelength (output transmission) is shifted to 674.6 nm when we increased the surrounding medium into 1.43 to imitate the bioanalytes solution. According to simulation result, the wavelength shift was approximately 43.2 nm for 0.1 increasing of surrounding refractive index. The dual microring resonator polymer waveguide was fabricated by using electron beam lithography. Then, the fabricated devices were integrated into microfluidic systems in order to validate the wavelength shift. From the experiments, the wavelength shift occurred approximately 22.3 nm over 0.1 increment of refractive index. Thus both simulation and experimental results strongly indicate that dual microring resonator polymer waveguide structure at visible wavelength region have a potential for label or label-free optical biosensing applications.

Item Type:	Conference or Workshop Item (Slide Presentation)
Additional Information:	4794/72934
Uncontrolled Keywords:	Optical biosensor, COMSOL Multiphysics, dual microring resonators, label-free sensing, polymer waveguide
Subjects:	Q Science > Q Science (General) Q Science > QC Physics T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Physics Kulliyyah of Science Kulliyyah of Science > Department of Computational and Theoretical Sciences
Depositing User:	Dr. Mohd. Hazimin Mohd. Salleh
Date Deposited:	19 Jul 2019 11:43
Last Modified:	19 Jul 2019 11:43
URI:	http://irep.iium.edu.my/id/eprint/72934

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