Comparison of Some Aspherical Curved Surfaces of A Single Biconcave Acoustic Lens System for Ambient Noise Imaging

2008 ◽  
pp. 333-338 ◽  
Author(s):  
K. Mori ◽  
H. Ogasawara ◽  
T. Nakamura
Keyword(s):  
Ambient Noise ◽  
Curved Surfaces ◽  
Lens System ◽  
Acoustic Lens

Finite Difference Time Domain Analysis of Underwater Acoustic Lens System for Ambient Noise Imaging

2006 ◽  
Vol 45 (5B) ◽  
pp. 4834-4841 ◽  
Author(s):  
Kazuyoshi Mori ◽  
Ayano Miyazaki ◽  
Hanako Ogasawara ◽  
Tomoki Yokoyama ◽  
Toshiaki Nakamura
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Ambient Noise ◽  
Time Domain Analysis ◽  
Domain Analysis ◽  
Lens System ◽  
Underwater Acoustic ◽  
Acoustic Lens ◽  
Difference Time

scholarly journals Polyadic Cantor Fractal Ultrasonic Lenses: Design and Characterization

2018 ◽  
Vol 8 (8) ◽  
pp. 1389 ◽  
Author(s):  
Sergio Castiñeira-Ibáñez ◽  
Daniel Tarrazó-Serrano ◽  
Jose Fuster ◽  
Pilar Candelas ◽  
Constanza Rubio
Keyword(s):  
Thermal Ablation ◽  
Dynamic Control ◽  
Design Parameters ◽  
Medical Applications ◽  
Curved Surfaces ◽  
Ultrasonic Beam ◽  
Acoustic Lens ◽  
Acoustic Profile ◽  
Made In

Traditional acoustic lenses modulate the ultrasonic beam due to their curved surfaces and the refractive material of which they are made. In this work, a different type of acoustic lens, based on Polyadic Cantor Fractals (PCF), is presented and thoroughly analyzed. These new Polyadic Cantor Fractal Lenses (PCFLs) are completely flat and easy to build, and they present interesting modulation capabilities over the acoustic profile. The dependence of the focusing profile on the PCFL design parameters is fully characterized, and it is shown that certain design parameters provide a dynamic control, which is critical in many medical applications such as thermal ablation of tumors.

Design and Convergence Performance Analysis of Aspherical Acoustic Lens Applied to Ambient Noise Imaging in Actual Ocean Experiment

2011 ◽  
Vol 50 (7) ◽  
pp. 07HG09 ◽  
Author(s):  
Kazuyoshi Mori ◽  
Hanako Ogasawara ◽  
Toshiaki Nakamura ◽  
Takenobu Tsuchiya ◽  
Nobuyuki Endoh
Keyword(s):  
Performance Analysis ◽  
Ambient Noise ◽  
Acoustic Lens ◽  
Convergence Performance

Real-time three-dimensional optoacoustic imaging using an acoustic lens system

2004 ◽  
Vol 85 (5) ◽  
pp. 846-848 ◽  
Author(s):  
J. J. Niederhauser ◽  
M. Jaeger ◽  
M. Frenz
Keyword(s):  
Real Time ◽  
Three Dimensional ◽  
Lens System ◽  
Optoacoustic Imaging ◽  
Acoustic Lens

Extraction of Target Scatterings from Received Transients on Target Detection Trial of Ambient Noise Imaging with Acoustic Lens

2012 ◽  
Vol 51 (7S) ◽  
pp. 07GG10 ◽  
Author(s):  
Kazuyoshi Mori ◽  
Hanako Ogasawara ◽  
Toshiaki Nakamura ◽  
Takenobu Tsuchiya ◽  
Nobuyuki Endoh
Keyword(s):  
Target Detection ◽  
Ambient Noise ◽  
Acoustic Lens
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