Optimal spatiotemporal focusing through complex scattering media

被引：8

作者：

Aulbach, Jochen ^{[1
,2
]}

Bretagne, Alice ^{[1
]}

Fink, Mathias ^{[1
]}

Tanter, Mickael ^{[1
]}

Tourin, Arnaud ^{[1
]}

机构：

[1] CNRS, Inst Langevin, ESPCI ParisTech, F-75231 Paris 05, France

[2] FOM Inst Atom & Mol Phys AMOLF, NL-1098 XG Amsterdam, Netherlands

来源：

PHYSICAL REVIEW E | 2012年 / 85卷 / 01期

关键词：

LIGHT; PULSE; COMPRESSION;

D O I：

10.1103/PhysRevE.85.016605

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We present an alternative approach for spatiotemporal focusing through complex scattering media by wave front shaping. Using a nonlinear feedback signal to shape the incident pulsed wave front, we show that the limit of a spatiotemporal matched filter can be achieved; i.e., the wave amplitude at the intended time and focus position is maximized for a given input energy. It is exactly what is also achieved with time reversal. Demonstrated with ultrasound experiments, our method is generally applicable to all types of waves.

引用

页数：7

共 20 条

[1] Control of Light Transmission through Opaque Scattering Media in Space and Time [J].

Aulbach, Jochen ;

Gjonaj, Bergin ;

Johnson, Patrick M. ;

Mosk, Allard P. ;

Lagendijk, Ad .

PHYSICAL REVIEW LETTERS, 2011, 106 (10)

[2] Feedback-controlled optimization of amplified femtosecond laser pulses [J].

Brixner, T ;

Strehle, M ;

Gerber, G .

APPLIED PHYSICS B-LASERS AND OPTICS, 1999, 68 (02) :281-284

[3] Random multiple scattering of ultrasound. II. Is time reversal a self-averaging process? art. no. 036606 [J].

Derode, A ;

Tourin, A ;

Fink, M .

PHYSICAL REVIEW E, 2001, 64 (03) :13-366113

[4] Time reversed acoustics [J].

Fink, M .

PHYSICS TODAY, 1997, 50 (03) :34-40

[5]

Gjonaj B, 2011, NAT PHOTONICS, V5, P360, DOI [10.1038/nphoton.2011.57, 10.1038/NPHOTON.2011.57]

[6]

Herbert E, 2009, IEEE T ULTRASON FERR, V56, P2388, DOI [10.1109/TUFFC.2009.1327, 10.1109/TUFFc.2009.1327]

[7] Three-dimensional harmonic holographic microcopy using nanoparticles as probes for cell imaging [J].

Hsieh, Chia-Lung ;

Grange, Rachel ;

Pu, Ye ;

Psaltis, Demetri .

OPTICS EXPRESS, 2009, 17 (04) :2880-2891

[8]

Katz O, 2011, NAT PHOTONICS, V5, P372, DOI [10.1038/nphoton.2011.72, 10.1038/NPHOTON.2011.72]

[9] MR-Guided Adaptive Focusing of Ultrasound [J].

Larrat, Benoit ;

Pernot, Mathieu ;

Montaldo, Gabriel ;

Fink, Mathias ;

Tanter, Mickael .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2010, 57 (08) :1734-1747

[10]

Leighton T., 2012, The Acoustic Bubble

← 1 2 →