Abstract
Polymer-based integrated Young interferometer (YI) sensor
chips have proven to be sensitive and have potential to
be mass-manufactured. The sensing method is however,
disturbed by the mechanical drifts, thus requiring well
stabilized and isolated measurement setups that limit its
applicability to low-cost readers for rapid diagnostics.
In this paper we derive a method for the compensation of
mechanical drift by using a multichannel integrated YI
chip having two reference channels. The compensation
method was demonstrated by quantitative measurements with
a three-channel integrated polymeric YI sensor chip using
an undisturbed and a mechanically disturbed setup. By
applying the compensation method, the intrinsic drift of
the undisturbed setup was reduced up to 84%. With the
mechanically disturbed setup, the sample-induced
phase-change responses were separated up to a 161 times
larger disturbed signal.
Original language | English |
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Pages (from-to) | 4771-4780 |
Journal | Applied Optics |
Volume | 54 |
Issue number | 15 |
DOIs | |
Publication status | Published - 2015 |
MoE publication type | A1 Journal article-refereed |
Keywords
- interferometry
- fringe analysis
- sensors