While offering promising applications in augmented reality (AR), the Maxwellian based AR display faces a critical limitation due to its constrained exit pupil size, posing discomfort to wearers and vulnerability to image loss upon minor misalignments. To address this issue, we propose a method utilizing Raman-Nath holographic grating for Maxwellian waveguide based display, aiming to expand the exit pupil effectively. It involves the development of two-dimensional gratings through the peristrophic multiplexing technique following the Raman-Nath regime. By spatially separating the outcoupled converging beam using multiplexed grating, an expansion of the exit pupil in horizontal as well as vertical directions is achieved. This enables the enlargement of the eye box into two dimensions, enhancing user comfort and mitigating the risk of image loss due to misalignments. Through experimental validation and optical simulation, the feasibility and effectiveness of our proposed method of Maxwellian waveguide displays for AR applications are demonstrated.
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