Retrieving Time-Dependent Green's Functions in Optics with Low-Coherence Interferometry

被引:17
作者
Badon, Amaury [1 ]
Lerosey, Geoffroy [1 ]
Boccara, Albert C. [1 ]
Fink, Mathias [1 ]
Aubry, Alexandre [1 ]
机构
[1] PSL Res Univ, ESPCI ParisTech, CNRS UMR 7587, Inst Langevin, F-75005 Paris, France
关键词
REVERSAL; TRANSMISSION; LIGHT;
D O I
10.1103/PhysRevLett.114.023901
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on the passive measurement of time-dependent Green's functions in the optical frequency domain with low-coherence interferometry. Inspired by previous studies in acoustics and seismology, we show how the correlations of a broadband and incoherent wave field can directly yield the Green's functions between scatterers of a complex medium. Both the ballistic and multiple scattering components of the Green's function are retrieved. This approach opens important perspectives for optical imaging and characterization in complex scattering media.
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页数:5
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