Three-Dimensional Spatial Image Forming Using Gradient-Index Lens Arrays.

2002 ◽  
Vol 30 (12) ◽  
pp. 731-736
Author(s):  
Fumio OKANO ◽  
Jun ARAI ◽  
Makoto OKUI
Keyword(s):  
Three Dimensional ◽  
Gradient Index ◽  
Spatial Image ◽  
Gradient Index Lens

Sonic Gradient Index Lens in Water

2010 ◽  
Author(s):  
Theodore P. Martin ◽  
Michael Nicholas ◽  
Gregory J. Orris ◽  
Liang-Wu Cai ◽  
Daniel Torrent ◽  
...  
Keyword(s):  
Gradient Index ◽  
Gradient Index Lens

scholarly journals Two-photon microscopy with simultaneous standard and extended depth of field using a tunable acoustic gradient-index lens

2009 ◽  
Vol 34 (11) ◽  
pp. 1684 ◽  
Author(s):  
Nicolas Olivier ◽  
Alexandre Mermillod-Blondin ◽  
Craig B. Arnold ◽  
Emmanuel Beaurepaire
Keyword(s):  
Depth Of Field ◽  
Gradient Index ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Gradient Index Lens ◽  
Extended Depth Of Field

Fiber compatible fast acousto‐optic modulator using a gradient index lens as the interaction medium

1993 ◽  
Vol 62 (26) ◽  
pp. 3402-3404 ◽  
Author(s):  
I. Abdulhalim ◽  
C. N. Pannell ◽  
D. N. Payne
Keyword(s):  
Gradient Index ◽  
Acousto Optic Modulator ◽  
Gradient Index Lens

An alternative method for measuring the index profile of a gradient-index lens

2011 ◽  
Author(s):  
H. C. Hsieh ◽  
W. C. Wu ◽  
W. Y. Chang ◽  
F. S. Hsu ◽  
D. C. Su
Keyword(s):  
Gradient Index ◽  
Index Profile ◽  
Alternative Method ◽  
Gradient Index Lens

Bessel Beam Generated by Linear Radial Gradient-Index Lens

2015 ◽  
Vol 42 (8) ◽  
pp. 0802002
Author(s):  
孙川 Sun Chuan ◽  
何艳林 He Yanlin ◽  
陈婧 Chen Jing ◽  
吴逢铁 Wu Fengtie
Keyword(s):  
Bessel Beam ◽  
Gradient Index ◽  
Radial Gradient ◽  
Gradient Index Lens

Acoustic Luneburg Lens as a New Sonar System

2015 ◽  
Vol 763 ◽  
pp. 101-104 ◽  
Author(s):  
Sang Hoon Kim
Keyword(s):  
Variable Density ◽  
Gradient Index ◽  
Two Dimensional ◽  
Frequency Range ◽  
Acoustic Source ◽  
Incoming Wave ◽  
Sonar System ◽  
Gradient Index Lens ◽  
Luneburg Lens ◽  
Strong Candidate

Luneburg lens is a gradient index lens that focuses the incoming wave to the opposite side of the lens without aberration. We developed a two-dimensional acoustic Luneburg lens by variable density method of space inside the lens. The lens is composed of hundreds of aluminum columns with various radii of less than 1cm. We tested the ability as sonar in the air. It focuses the incoming acoustic wave on the edge of the opposite side of the lens as well in the frequency range of 1,000Hz ~ 3,000Hz. It showed a dynamic response depending on the motion of the acoustic source. It could be a strong candidate of a next generation of sonar.

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