期刊
OPTICS EXPRESS
卷 24, 期 16, 页码 18631-18641出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.24.018631
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资金
- French Ministere de la Defense, Direction Generale de l'Armement
- PSL under grant CSI:PSL
- LABEX WIFI (Laboratory of Excellence within the French Program Investments for the Future) [ANR-10-LABX-24, ANR-10-IDEX-0001-02 PSL*]
- Agence Nationale de la Recherche [ANR-13-JS09-0001-01]
Transmission matrices (TMs) have become a powerful and widely used tool to describe and control wave propagation in complex media. In certain scenarios the TM is partially uncontrollable, complicating its identification and use. In standard optical wavefront shaping experiments, uncontrollable reflections or imperfect illumination may be the cause; in reverberating cavities, uncontrollable reflections off the walls have that effect. Here we employ phase retrieval techniques to identify such a partially uncontrollable TM solely based on random intensity-only reference measurements. We demonstrate the feasibility of our method by focusing both on a single target as well as on multiple targets in a microwave cavity, using a phase-binary Spatial-Microwave-Modulator. (C) 2016 Optical Society of America
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