CCD and Hartmann-Shack wavefront sensor to analyse holographic lens resolution

Tomás Lloret; Víctor Navarro-Fuster; Marta Morales-Vidal; Manuel G. Ramírez; Andrés Márquez; Augusto Beléndez; Inmaculada Pascual

doi:10.1117/12.2665716

31 May 2023 CCD and Hartmann-Shack wavefront sensor to analyse holographic lens resolution

Tomás Lloret, Víctor Navarro-Fuster, Marta Morales-Vidal, Manuel G. Ramírez, Andrés Márquez, Augusto Beléndez, Inmaculada Pascual

Author Affiliations +

Proceedings Volume 12574, Holography: Advances and Modern Trends VIII; 125740Z (2023) https://doi.org/10.1117/12.2665716
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Abstract

Nowadays, the study and optimization of volume holographic lenses (HLs) stored in low-toxicity photopolymers have a great interest. HLs are now a component of optical imaging systems that are mostly used in head-mounted displays for virtual and augmented reality or as non-image systems in light deflectors and concentrators. One of the most important parameters used when working with imaging systems is the resolution of the optical system. In this work, the similarity between the object and image of negative asymmetrical HLs stored in a low-toxicity photopolymer named Biophotopol has been evaluated theoretically and experimentally. For this purpose, the resolution of the HLs was calculated using the Convolution Theorem. A USAF 1951 test was used as an object and the impulse responses of the HLs were obtained with two different sensors: CCD and Hartmann-Shack (HS) wavefront sensor. In addition, the resolution of the HLs has been obtained by two different methods: one using the Convolution Theorem, using both the CCD and the HS wavefront sensor, and the other by forming the USAF test image on the CCD sensor. Finally, a theoretical study of object-image similarity was carried out using the MSE (mean squared error) metric to evaluate the quantitative experimental results.

Conference Presentation

Citation Download Citation

Tomás Lloret, Víctor Navarro-Fuster, Marta Morales-Vidal, Manuel G. Ramírez, Andrés Márquez, Augusto Beléndez, and Inmaculada Pascual "CCD and Hartmann-Shack wavefront sensor to analyse holographic lens resolution", Proc. SPIE 12574, Holography: Advances and Modern Trends VIII, 125740Z (31 May 2023); https://doi.org/10.1117/12.2665716

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