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Imaging of acoustic pressure modes in opto-mechano-fluidic resonators with a single particle probe
Applied Physics Letters ( IF 4 ) Pub Date : 2018-02-12 , DOI: 10.1063/1.5010939
Jeewon Suh 1 , Kewen Han 1 , Gaurav Bahl 1
Affiliation  

Opto-mechano-fluidic resonators (OMFRs) are a platform for high-throughput sensing of the mechanical properties of freely flowing microparticles in arbitrary media. Experimental extraction of OMFR mode shapes, especially the acoustic pressure field within the fluidic core, is essential for determining sensitivity and for extracting the particle parameters. Here, we demonstrate an imaging technique for simultaneously capturing the spatially distributed acoustic pressure fields of multiple vibrational modes in the OMFR system. The mechanism operates using microparticles as perturbative imaging probes and potentially reveals the inverse path towards multimode inertial detection of the particles themselves.

中文翻译:

使用单粒子探针对光-机械-流体谐振器中的声压模式进行成像

光-机械-流体谐振器 (OMFR) 是一种用于高通量传感任意介质中自由流动微粒的机械特性的平台。OMFR 模式形状的实验提取,尤其是流体核心内的声压场,对于确定灵敏度和提取粒子参数至关重要。在这里,我们展示了一种成像技术,用于同时捕获 OMFR 系统中多个振动模式的空间分布声压场。该机制使用微粒作为微扰成像探针进行操作,并可能揭示对粒子本身进行多模惯性检测的反向路径。
更新日期:2018-02-12
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