Mr. Huanlin Lv Profile

Huanlin Lv

at Dalian Univ of Technology

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Proceedings Article | 8 May 2012 Paper

Optical biosensors utilizing polymer-based athermal microring resonators

Linghua Wang, Xuiyou Han, Yiying Gu, Huanlin Lv, Jianfang Cheng, Jie Teng, Jun Ren, Jinyan Wang, Xigao Jian, Mingshan Zhao

Proceedings Volume 8427, 842731 (2012) https://doi.org/10.1117/12.922209

KEYWORDS: Microrings, Polymers, Resonators, Waveguides, Polymer multimode waveguides, Optical biosensors, Biosensing, Silicon, Temperature metrology, Molecules

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Optical waveguide biosensors are attracting more and more attentions and presenting great potential applications. Polymer-based optical biosensors are promising for the their unique advantages: low cost, easy fabrication, possibility of functionalization with chemicals for the detection of biological molecules, and flexible operating wavelength in both the infrared communication wavelength band (1310-1550nm) and the visible wavelength region (500-800nm). Operating in the visible wavelength, the optical biosensing can avoid the high optical absorption loss of water solution, which can hardly be done for Si-based optical sensors. In this paper, an optical biosensor utilizing polymer-based athermal optical waveguide microring resonator is presented. The athermal design of the microring resonator can make the resonant wavelength drift with temperature be greatly reduced, and an optical biosensing platform with high thermal stability can be achieved. The simulation results show that the maximal resonant wavelength drift is -0.0085nm when the temperature varies from 20°C to 65°C and the maximal wavelength drift slope is -0.0009nm/K. With the microring resonators fabricated by using a simple UV based soft imprint technique with self-developed UV-curable polymer PSQ-L materials, experimental investigations on the specific surface detection of target molecules have been preliminarily performed. The results shows that the optical biosensors based on the polymer optical microring resonators would have potential applications for label-free surface sensing.

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