Controllable multi-point light focusing of feedback wavefront shaping based on phase superposition Hadamard encoding algorithm

To achieve controllable multi-point light focusing, we develop a new feedback wavefront shaping optimization algorithm called phase superposition Hadamard encoding algorithm (PS-HEA). This algorithm combines the phase superposition method with the Hadamard encoding algorithm, and uniformity coeffici...

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Veröffentlicht in:Optik (Stuttgart) Jg. 253; S. 168549
Hauptverfasser: Hu, Yue, Yang, Fan, He, Jiaqi, Ding, Yingchun
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier GmbH 01.03.2022
Schlagworte:
Customizable intensity
Multi-point controllable
Phase superposition Hadamard encoding algorithm
Wavefront shaping
Multi-point controllable
Phase superposition Hadamard encoding algorithm
Wavefront shaping
Customizable intensity
ISSN:0030-4026, 1618-1336
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Zusammenfassung:To achieve controllable multi-point light focusing, we develop a new feedback wavefront shaping optimization algorithm called phase superposition Hadamard encoding algorithm (PS-HEA). This algorithm combines the phase superposition method with the Hadamard encoding algorithm, and uniformity coefficient H is introduced to improve the uniformity of multi-point focusing. With the PS-HEA algorithm, we experimentally realized uniform focusing and multi-point customized intensity ratio focusing of light through the scattering medium and demonstrated the strong anti-noise and light control capabilities of PS-HEA in multi-point light focusing. Our research may pave the way for potential applications of optical manipulation and optogenetics.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2021.168549