Focusing through scattering media by transmission matrix measurement using co-axial configuration of SLM

E. Okada; X. Quan; K. Ohta; N. Yoneda; O. Matoba

doi:10.1117/12.3007919

20 September 2023 Focusing through scattering media by transmission matrix measurement using co-axial configuration of SLM

E. Okada, X. Quan, K. Ohta, N. Yoneda, O. Matoba

Author Affiliations +

Proceedings Volume 12608, Biomedical Imaging and Sensing Conference; 126080Y (2023) https://doi.org/10.1117/12.3007919
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

Transmission matrix is one of the methods to focus light through scattering media. To measure complex transmission matrix, four-step phase shifting is often used. Here we propose co-axial configuration method to derive phase distribution of output field. In the proposed method, ordinary and extraordinary polarization states are used as a reference wave and an object wave. This method utilizes the maximum projection area of a spatial light modulator (SLM), hence, improves the focusing power.

Citation Download Citation

E. Okada, X. Quan, K. Ohta, N. Yoneda, and O. Matoba "Focusing through scattering media by transmission matrix measurement using co-axial configuration of SLM", Proc. SPIE 12608, Biomedical Imaging and Sensing Conference, 126080Y (20 September 2023); https://doi.org/10.1117/12.3007919

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