Phased array slow shear TeO 2 Bragg cells: design and performance
作者： D.R. Pape , M.L. Shah
DOI: 10.1109/ULTSYM.1993.339529
关键词:
摘要: The phased array transducer, when combined with the anisotropic Bragg interaction, provides a unique combination of features not available usual acoustical or optical rotation schemes used in design slow shear TeO2 cells. A general theory for interaction birefringent medium is applied to 60 MHz bandwidth, 50 ms time-aperture cell. 90 center frequency device designed 810 nm illumination 12-element Gaussian apodized transducer 154 mm element spacing oriented 1d from [110] was fabricated. exhibited and bandwidth over 30%/W peak diffraction efficiency fully illuminated aperture. exhibits Hecht limited two-tone third order intermodulation products at least half
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