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Self-referenced waveguide grating sensor
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DOI：10.1364/OL.41.001447.png)
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摘要
En 中文
Like any other sensor system, performances of waveguide grating couplers are affected by adverse effects such as noise and drift, mainly limiting the devices' resolution and long-term stability. It is therefore often required to reference the measurement with a secondary, parallel sensor to decrease these undesired influences. Here we present a simple but effective method to self-reference a label-free waveguide grating coupler by partially coating and thereby passivating the sensitive area with an inert layer. The presented waveguide grating chip design offers the advantage of internal self-referencing for adverse effects, such as inherent system instabilities, mechanical disturbance, or temperature drift, without the need of a sacrificial reference channel. (C) 2016 Optical Society of America
Keyword:
OPTICAL SENSOR
COUPLERS
INTERFEROMETER
BIOSENSORS
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期刊
IF:
3.3
论文数:
4.0W
被引数:
8.2W
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Self-referencing a single waveguide grating sensor in a micron-sized deep flow chamber for label-free biomolecular binding assays.png)
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