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.
Resonance frequency of optical microbubble resonators: Direct measurements and mitigation of fluctuations
Cosci Alessandro;Berneschi Simone;Giannetti Ambra;Farnesi Daniele;Baldini Francesco;Soria Silvia;Barucci Andrea;Righini Giancarlo;Pelli Stefano
2016
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.File in questo prodotto:
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