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Resonance Frequency of Optical Microbubble Resonators: Direct Measurements and Mitigation of Fluctuations.

ABSTRACT: This work shows the improvements in the sensing capabilities and precision of an Optical Microbubble Resonator due to the introduction of an encaging poly(methyl methacrylate) (PMMA) box. A frequency fluctuation parameter ? was defined as a score of resonance stability and was evaluated in the presence and absence of the encaging system and in the case of air- or water-filling of the cavity. Furthermore, the noise interference introduced by the peristaltic and the syringe pumping system was studied. The measurements showed a reduction of ? in the presence of the encaging PMMA box and when the syringe pump was used as flowing system.

SUBMITTER: Cosci A

PROVIDER: S-EPMC5038683 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

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Resonance Frequency of Optical Microbubble Resonators: Direct Measurements and Mitigation of Fluctuations.

Cosci Alessandro A Berneschi Simone S Giannetti Ambra A Farnesi Daniele D Cosi Franco F Baldini Francesco F Nunzi Conti Gualtiero G Soria Silvia S Barucci Andrea A Righini Giancarlo G Pelli Stefano S

Sensors (Basel, Switzerland) 20160831 9

This work shows the improvements in the sensing capabilities and precision of an Optical Microbubble Resonator due to the introduction of an encaging poly(methyl methacrylate) (PMMA) box. A frequency fluctuation parameter σ was defined as a score of resonance stability and was evaluated in the presence and absence of the encaging system and in the case of air- or water-filling of the cavity. Furthermore, the noise interference introduced by the peristaltic and the syringe pumping system was stud ...[more]

PMID: 27589761

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