J
Jian-yu Lu
Researcher at University of Toledo
Publications - 108
Citations - 3428
Jian-yu Lu is an academic researcher from University of Toledo. The author has contributed to research in topics: Diffraction & Aperture. The author has an hindex of 28, co-authored 103 publications receiving 3265 citations. Previous affiliations of Jian-yu Lu include Nanjing Institute of Technology & Mayo Clinic.
Papers
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Journal ArticleDOI
Nondiffracting X waves-exact solutions to free-space scalar wave equation and their finite aperture realizations
Jian-yu Lu,James F. Greenleaf +1 more
TL;DR: The authors report families of generalized nondiffracting solutions of the free-space scalar wave equation, and specifically, a subset of these nondiffracted solutions, which are called X waves, which can be almost exactly realized over a finite depth of field with finite apertures and by either broadband or bandlimited radiators.
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Ultrasonic nondiffracting transducer for medical imaging
Jian-yu Lu,J.F. Greenleaf +1 more
TL;DR: The nondiffracting J/sub 0/ Bessel beam is evaluated, and its application to medical imaging is suggested and computer simulations and experimental results for a ten-ring annular Bessel shaded transducer are described.
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Experimental verification of nondiffracting X waves
Jian-yu Lu,J.F. Greenleaf +1 more
TL;DR: A zeroth-order acoustic X wave (axially symmetric) was experimentally produced with an acoustic annular array transducer, and an X wave of finite aperture driven with realizable pulses is found to travel with a large depth of field (nondiffracting length).
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2D and 3D high frame rate imaging with limited diffraction beams
TL;DR: In this paper, the Fourier method is used to obtain spatial Fourier transform of object functions and images are constructed with an inverse Fourier Transform Transform (TFT) transform.
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Biomedical ultrasound beam forming
TL;DR: This paper focuses on trade-offs among the above four aspects of beam forming and relate them to system parameters such as aperture size, f-number (the ratio between focal length and aperture diameter), central frequency (wavelength), system bandwidth and sidelobes.