scholarly journals Fractal structure of digital speckle patterns produced by rough surfaces

2013 ◽  
Vol 392 (4) ◽  
pp. 869-874 ◽  
Author(s):  
R.D. Corrêa ◽  
J.B. Meireles ◽  
J.A.O. Huguenin ◽  
D.P. Caetano ◽  
L. da Silva
Keyword(s):  
Fractal Structure ◽  
Rough Surfaces ◽  
Speckle Patterns ◽  
Digital Speckle

Tsallis threshold analysis of digital speckle patterns generated by rough surfaces

2015 ◽  
Vol 432 ◽  
pp. 1-8 ◽  
Author(s):  
H.C. Soares ◽  
J.B. Meireles ◽  
A.O. Castro ◽  
J.A.O. Huguenin ◽  
A.G.M. Schmidt ◽  
...  
Keyword(s):  
Rough Surfaces ◽  
Threshold Analysis ◽  
Speckle Patterns ◽  
Digital Speckle

Lacunarity study of speckle patterns produced by rough surfaces

2017 ◽  
Vol 486 ◽  
pp. 328-336 ◽  
Author(s):  
M.R.B. Dias ◽  
D. Dornelas ◽  
W.F. Balthazar ◽  
J.A.O. Huguenin ◽  
L. da Silva
Keyword(s):  
Rough Surfaces ◽  
Speckle Patterns

Partially Fractal Impedance Networks

1998 ◽  
Vol 53 (10-11) ◽  
pp. 819-822
Author(s):  
D. Thompson
Keyword(s):  
Geometric Structure ◽  
Arbitrary Number ◽  
Fractal Structure ◽  
Rough Surfaces ◽  
Exact Expression ◽  
Linear Networks ◽  
Effective Impedance ◽  
Previous Level

Abstract We analyse linear networks of impedances in the case when the impedances at every level differ by a factor of b from those at the previous level. Such networks can be used as models for rough surfaces, in which case there will exist a level of finest detail which must be taken into account in any calculation. We obtain an exact expression for the ratio of the impedance of the network to the outer impedance for an arbitrary number of elements in the network. We show that this class of networks shows a transition from a fractal geometric structure to a non-fractal structure according to the value of b. However, their effective impedance is never fractal.

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