中国物理B ›› 2024, Vol. 33 ›› Issue (1): 14303-14303.doi: 10.1088/1674-1056/acf44c

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Discrete multi-step phase hologram for high frequency acoustic modulation

Meng-Qing Zhou(周梦晴), Zhao-Xi Li(李照希), Yi Li(李怡), Ye-Cheng Wang(王业成), Juan Zhang(张娟), Dong-Dong Chen(谌东东), Yi Quan(全熠), Yin-Tang Yang(杨银堂), and Chun-Long Fei(费春龙)   

  1. School of Microelectronics, Xidian University, Xi'an 710071, China
  • 收稿日期:2023-07-05 修回日期:2023-08-11 接受日期:2023-08-28 出版日期:2023-12-13 发布日期:2023-12-25
  • 通讯作者: Zhao-Xi Li, Chun-Long Fei E-mail:lizhaoxi@xidian.edu.cn;clfei@xidian.edu.cn
  • 基金资助:
    Project supported by the China Postdoctoral Science Foundation (Grant No. 2023M732745), the National Natural Science Foundations of China (Grant Nos. 61974110 and 62104177), the Fundamental Research Funds for the Central Universities, China (Grant Nos. QTZX23022 and JBF211103), and the Cooperation Program of XDU– Chongqing IC Innovation Research Institute (Grant No. CQ IRI-2022CXY-Z07).

Discrete multi-step phase hologram for high frequency acoustic modulation

Meng-Qing Zhou(周梦晴), Zhao-Xi Li(李照希), Yi Li(李怡), Ye-Cheng Wang(王业成), Juan Zhang(张娟), Dong-Dong Chen(谌东东), Yi Quan(全熠), Yin-Tang Yang(杨银堂), and Chun-Long Fei(费春龙)   

  1. School of Microelectronics, Xidian University, Xi'an 710071, China
  • Received:2023-07-05 Revised:2023-08-11 Accepted:2023-08-28 Online:2023-12-13 Published:2023-12-25
  • Contact: Zhao-Xi Li, Chun-Long Fei E-mail:lizhaoxi@xidian.edu.cn;clfei@xidian.edu.cn
  • Supported by:
    Project supported by the China Postdoctoral Science Foundation (Grant No. 2023M732745), the National Natural Science Foundations of China (Grant Nos. 61974110 and 62104177), the Fundamental Research Funds for the Central Universities, China (Grant Nos. QTZX23022 and JBF211103), and the Cooperation Program of XDU– Chongqing IC Innovation Research Institute (Grant No. CQ IRI-2022CXY-Z07).

摘要: Acoustic holograms can recover wavefront stored acoustic field information and produce high-fidelity complex acoustic 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 applications. 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.

关键词: discrete multi-step phase hologram, econstruction quality, 3D printing accuracy, high-fidelity

Abstract: Acoustic holograms can recover wavefront stored acoustic field information and produce high-fidelity complex acoustic 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 applications. 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.

Key words: discrete multi-step phase hologram, econstruction quality, 3D printing accuracy, high-fidelity

中图分类号:  (Ultrasonics, quantum acoustics, and physical effects of sound)

  • 43.35.+d
43.60.Sx (Acoustic holography)