Polymer dual ring resonators for label-free optical biosensing using microfluidics.
نویسندگان
چکیده
We demonstrate a polymer resonator microfluidic biosensor that overcomes the complex manufacturing procedures required to fabricate traditional devices. In this new format, we show that a gapless light coupling photonic configuration, fabricated in SU8 polymer, can achieve high sensitivity, label-free chemical sensing in solution and high sensitivity biological sensing, at visible wavelengths.
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Figure 1: (A) A standard waveguide ring resonator contains its electromagnetic energy in the waveguides core. Depending on the characteristics of the resonator, specific wavelengths are stored in the ring and not transmitted. (B) When biomolecules are present in the surrounding solution, the evanescent field of the waveguide interacts and the effective refractive index of the resonator changes,...
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عنوان ژورنال:
- Chemical communications
دوره 49 30 شماره
صفحات -
تاریخ انتشار 2013