P2-69 An Analysis on Focusing Characteristics for Phase Continuous Fresnel Lens Using FDTD Method(Poster session 2)

Kazuyoshi Mori, Ayano Miyazaki, Hanako Ogasawara, Toshiaki Nakamura, Yasuhito Takeuchi
Proceedings of Symposium on Ultrasonic Electronics  
doi:10.24492/use.27.0_345 fatcat:ly4yeapoebggbp3i6ntubiu23q