3D holographic near-eye display based on Fraunhofer diffraction using metalens as an eyepiece

Zeqing Yu; Chang Wang; Lingmei Chen; Qin Xie; Xinyu Liu; Fei Wu; Zhenrong Zheng

doi:10.1117/12.2601069

9 October 2021 3D holographic near-eye display based on Fraunhofer diffraction using metalens as an eyepiece

Zeqing Yu, Chang Wang, Lingmei Chen, Qin Xie, Xinyu Liu, Fei Wu, Zhenrong Zheng

Proceedings Volume 11898, Holography, Diffractive Optics, and Applications XI; 1189803 (2021) https://doi.org/10.1117/12.2601069
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

The widespread use of holographic VR/AR devices are limited by bulky refractive and diffractive optics. To address these problems, a NED system combining the 3D CGH based on Fraunhofer diffraction and a metalens with 5 mm diameter as an eyepiece is proposed in this paper. Because of the capability of wavefront shaping in a subwavelength scale, the metalens eyepiece surly facilitates lightening the CGH-NED systems. Experiments are carried out for this design, where Fraunhofer diffraction with digital lens phases of different focal lengths are applied, and the metalens transforms the holographic reconstructed 3D image into virtual image to realize NED. The metalens eyepiece composed of silicon nitride anisotropic nanofins is fabricated with the diffraction efficiency and field of view for 532 nm incidence of 15.7% and 31°, respectively. Our work combining of CGH and metalens may provide a promising solution in future for computer-generated holographic 3D portable display.

Conference Presentation

Citation Download Citation

Zeqing Yu, Chang Wang, Lingmei Chen, Qin Xie, Xinyu Liu, Fei Wu, and Zhenrong Zheng "3D holographic near-eye display based on Fraunhofer diffraction using metalens as an eyepiece", Proc. SPIE 11898, Holography, Diffractive Optics, and Applications XI, 1189803 (9 October 2021); https://doi.org/10.1117/12.2601069

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available