Light-directed writing of chemically tunable narrow-band holographic sensors

Yetisen, A. K.; Butt, H.; da Cruz Vasconcellos, F.; Montelongo, Y.; Davidson, C. A. B.; Blyth, J.; Chan, L.; Carmody, J. B.; Vignolini, Silvia; Steiner, U.; Baumberg, J. J.; Wilkinson, T. D.; Lowe, C. R.

doi:10.1002/adom.201300375

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Light-directed writing of chemically tunable narrow-band holographic sensors

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Yetisen, A. K., Butt, H., da Cruz Vasconcellos, F., Montelongo, Y., Davidson, C. A. B., Blyth, J., et al. (2014). Light-directed writing of chemically tunable narrow-band holographic sensors. Advanced Optical Materials, 2(3), 250-254. doi:10.1002/adom.201300375.

Cite as: https://hdl.handle.net/21.11116/0000-000B-FAB4-0

Abstract

This tunable holographic sensor offers interrogation and a reporting transducer as well as an analyte-responsive hydrogel, rendering it label-free and reusable. A single 6 ns laser pulse is used to fabricate holographic sensors consisting of silver nanoparticles arranged periodically within a polymer film. The tunability of the sensor is demonstrated through pH sensing of artificial urine and validated through computational modeling. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.