Toward a highly sensitive polymer waveguide fiber Fabry–Pérot ultrasound detector
作者: Supriya V. ThathacharyShai Ashkenazi
作者单位: 1University of Minnesota
刊名: Journal of Biomedical Optics, 2018, Vol.23 (10), pp.106008-106008
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.JBO.23.10.106008
关键词: Intravascular imagingFabry–PérotFiber-opticOptical ultrasound detection
原始语种摘要: In recent times, there has been extensive research on fiber-optic imaging devices in order to enable imaging/sensing at a size scale inaccessible to other modalities. The design for fabrication of a highly sensitive fiber-optic ultrasound detector is proposed. The transducer employs a polymer Fabry–Pérot resonator for ultrasound detection. To enhance acoustic sensitivity, a method is proposed for fabricating a self-aligned polymer waveguide within the cavity to improve the resonator quality factor ( Q -factor). Simulation studies were conducted to evaluate feasibility and quantify the improvement in Q -factor for different transducer configurations. Results show that with dielectric mirrors and a waveguide, Q -factor can approach the order of 10,000. Additional simulation studies are...
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