Deterministic light focusing in space and time through multiple scattering media with a Time-Resolved Transmission Matrix approach (Conference Presentation)

2017 ◽  
Author(s):  
Mickael Mounaix ◽  
Hugo Defienne ◽  
Sylvain Gigan
Keyword(s):  
Multiple Scattering ◽  
Transmission Matrix ◽  
Matrix Approach ◽  
Scattering Media ◽  
Time Resolved ◽  
Space And Time ◽  
Light Focusing

scholarly journals Light focusing and two-dimensional imaging through scattering media using the photoacoustic transmission matrix with an ultrasound array

2014 ◽  
Vol 39 (9) ◽  
pp. 2664 ◽  
Author(s):  
Thomas Chaigne ◽  
Jérôme Gateau ◽  
Ori Katz ◽  
Emmanuel Bossy ◽  
Sylvain Gigan
Keyword(s):  
Transmission Matrix ◽  
Two Dimensional ◽  
Scattering Media ◽  
Light Focusing

scholarly journals Focusing through random media in space and time: a transmission matrix approach

2013 ◽  
Vol 38 (15) ◽  
pp. 2714 ◽  
Author(s):  
Zhou Shi ◽  
Matthieu Davy ◽  
Jing Wang ◽  
Azriel Z. Genack
Keyword(s):  
Random Media ◽  
Transmission Matrix ◽  
Matrix Approach ◽  
Space And Time

scholarly journals Bright-White Beetle Scales Optimise Multiple Scattering of Light

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Matteo Burresi ◽  
Lorenzo Cortese ◽  
Lorenzo Pattelli ◽  
Mathias Kolle ◽  
Peter Vukusic ◽  
...  
Keyword(s):  
Refractive Index ◽  
Multiple Scattering ◽  
Coherent Scattering ◽  
Mean Free Path ◽  
High Refractive Index ◽  
Light Transport ◽  
Scattering Media ◽  
Time Resolved ◽  
Low Mass ◽  
High Level

Abstract Whiteness arises from diffuse and broadband reflection of light typically achieved through optical scattering in randomly structured media. In contrast to structural colour due to coherent scattering, white appearance generally requires a relatively thick system comprising randomly positioned high refractive-index scattering centres. Here, we show that the exceptionally bright white appearance of Cyphochilus and Lepidiota stigma beetles arises from a remarkably optimised anisotropy of intra-scale chitin networks, which act as a dense scattering media. Using time-resolved measurements, we show that light propagating in the scales of the beetles undergoes pronounced multiple scattering that is associated with the lowest transport mean free path reported to date for low-refractive-index systems. Our light transport investigation unveil high level of optimisation that achieves high-brightness white in a thin low-mass-per-unit-area anisotropic disordered nanostructure.

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