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. 2017 Sep 25;53(75):10382-10385.
doi: 10.1039/c7cc06357a. Epub 2017 Sep 6.

ZORRO: zirconium oxide resonators for all-in-one Raman and whispering-gallery-mode optical sensing

N Bontempi  1 , I Vassalini  1 , S Danesi  1 , I Alessandri  1
Affiliations

ZORRO: zirconium oxide resonators for all-in-one Raman and whispering-gallery-mode optical sensing

N Bontempi et al. Chem Commun (Camb). .

Abstract

We report the observation of whispering-gallery modes in 2 μm-sized SiO2/ZrO2 core/shell beads utilized as all-dielectric Raman enhancers. This allows us to achieve simultaneous optical and Raman ultrasensitive detection with a single spectral analysis. This opportunity opens exciting perspectives for the multimodal chemical sensing and fabrication of optical fiber devices.

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