Journal
OPTICS EXPRESS
Volume 21, Issue 20, Pages 23331-23344Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.023331
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Funding
- European Union [318035]
- Italian FIRB NEWTON [RBAP11BYNP]
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We report on the investigation on the resolution of optical sensors exploiting Bloch surface waves sustained by one dimensional photonic crystals. A figure of merit is introduced to quantitatively assess the performance of such sensors and its dependency on the geometry and materials of the photonic crystal. We show that the figure of merit and the resolution can be improved by adopting a full ellipsometric phase-sensitive approach. The theoretical predictions are confirmed by experiments in which, for the first time, such type of sensors are operated in the full ellipsometric scheme. (C) 2013 Optical Society of America
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