Discrete multi-step phase hologram for high frequency acoustic modulation

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外文摘要：Acoustic holograms can recover wavefront stored acoustic field information and produce high-fidelity complex acous-tic fields.Benefiting from the huge spatial information that traditional acoustic elements cannot match,acoustic holograms pursue the realization of high-resolution complex acoustic fields and gradually tend to high-frequency ultrasound appli-cations.However,conventional continuous phase holograms are limited by three-dimensional(3D)printing size,and the presence of unavoidable small printing errors makes it difficult to achieve acoustic field reconstruction at high frequency accuracy.Here,we present an optimized discrete multi-step phase hologram.It can ensure the reconstruction quality of image with high robustness,and properly lower the requirement for the 3D printing accuracy.Meanwhile,the concept of reconstruction similarity is proposed to refine a measure of acoustic field quality.In addition,the realized complex acoustic field at 20 MHz promotes the application of acoustic holograms at high frequencies and provides a new way to generate high-fidelity acoustic fields.

外文关键词：

discrete multi-step phase hologrameconstruction quality3D printing accuracyhigh-fidelity

作者：

周梦晴、李照希、李怡、王业成、张娟、谌东东、全熠、杨银堂、费春龙

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作者单位：

School of Microelectronics,Xidian University,Xi'an 710071,China

基金：

China Postdoctoral Science FoundationNational Natural Science Foundations of ChinaNational Natural Science Foundations of ChinaFundamental Research Funds for the Central Universities,ChinaFundamental Research Funds for the Central Universities,ChinaCooperation Program of XDU-Chongqing IC Innovation Research Institute

项目编号：

2023M7327456197411062104177QTZX23022JBF211103CQ IRI-2022CXY-Z07

出版年：

2024

DOI：

10.1088/1674-1056/acf44c

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(1)

参考文献量37