Diffraction Efficiency Enhanced Volume Holographic Gratings via Coupling Ag Thin Film

Yunping Qiu; Zhuoya Zhu; Xiaodie Wang; Xin Wang; Yongming Tang; Xiaobing Zhang

doi:10.1109/JPHOT.2018.2889334

IEEE Photonics Journal (Jan 2019)

Diffraction Efficiency Enhanced Volume Holographic Gratings via Coupling Ag Thin Film

Yunping Qiu,
Zhuoya Zhu,
Xiaodie Wang,
Xin Wang,
Yongming Tang,
Xiaobing Zhang

Affiliations

Yunping Qiu: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China
Zhuoya Zhu: ORCiD; Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China
Xiaodie Wang: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China
Xin Wang: ORCiD; Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China
Yongming Tang: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China
Xiaobing Zhang: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China

DOI: https://doi.org/10.1109/JPHOT.2018.2889334
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 5

Abstract

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Volume holographic gratings (VHGs) act as an in-coupler or out-coupler could be applied in holographic waveguide display system in which high diffraction efficiency is one of the key factors. Here, VHGs coupled with Ag thin film to enhance its diffraction efficiency is demonstrated. The first-order diffraction efficiency of the Ag coupled VHG increases by 34% when the uncoupled VHG is 42.8%. Numerical simulation results demonstrated that the Ag thin film could decrease the forward diffraction, corresponding with the first-order diffraction increasing in the coupled VHG. This paper provides useful information that Ag coupled VHGs may improve the diffraction efficiency of waveguide used in the head-mounted and near-eye display.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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