Reference-less wavefront shaping in a Hopfield-like rough intensity landscape

被引：0

作者：

Leonetti, Marco ^{[1
,2
,3
]}

Leuzzi, Luca ^{[1
,4
]}

Ruocco, Giancarlo ^{[2
]}

机构：

[1] CNR, Inst Nanotechnol, Soft & Living Matter Lab, I-00185 Rome, Italy

[2] Ist Italiano Tecnol, Ctr Life Nano Sci Sapienza, I-00161 Rome, Italy

[3] Rebel Dynam IIT CLN2S Jointlab, I-00161 Rome, Italy

[4] Univ Sapienza, Dept Phys, I-00185 Rome, Italy

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 18期

基金：

欧洲研究理事会;

关键词：

TRANSMISSION MATRIX; NEURAL-NETWORKS; SCATTERING; RETRIEVAL; LIGHT; DMD;

D O I：

10.1364/OE.492055

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This study introduces a new digital-micromirror based binary-phase wavefront shaping technique, which allows the measurement of the full coupling matrix of a disordered medium without a reference and enables to focusing transmitted light. The coupling matrix takes on a bi-dyadic structure, similar to a Hopfield memory matrix containing two memory patterns. Sequential wavefront optimization in this configuration often stalls due to a rough intensity landscape, resulting in a non-optimal state. To overcome this issue, we propose the Complete Couplings Mapping method, which consistently reaches the theoretically expected maximum intensity.& COPY; 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：28987 / 28998

页数：12

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