发明名称 |
High Frequency Ultrasound Detection Using Polymer Optical-Ring Resonator |
摘要 |
A polymer waveguide resonator device for high-frequency ultrasound detection having an optical resonator coupled to a straight optical waveguide which serves as input and output ports. Acoustic waves irradiating the waveguide induce strain modifying the waveguide cross-section or other design property. As a consequence, the effective refractive index of optical waves propagating along the ring is modified. The sharp wavelength dependence of the high Q-factor resonator enhances the optical response to acoustic strain. High sensitivity is demonstrated experimentally in detecting broadband ultrasound pulses from a 10 MHz transducer.
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申请公布号 |
US2008095490(A1) |
申请公布日期 |
2008.04.24 |
申请号 |
US20050662154 |
申请日期 |
2005.09.08 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF MICHIGAN |
发明人 |
ASHKENAZI SHAI;GUO LINGJIE J.;O'DONNELL MATTHEW |
分类号 |
G02B6/00 |
主分类号 |
G02B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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