High-speed planar lightwave circuit digital holographic microscope using a thin film heater for biological samples

Hideaki Gomi; Kazutaka Nakama; Shutaro Kodama; Katsunari Okamoto; Eriko Watanabe

doi:10.1117/12.2615655

27 October 2021 High-speed planar lightwave circuit digital holographic microscope using a thin film heater for biological samples

Hideaki Gomi, Kazutaka Nakama, Shutaro Kodama, Katsunari Okamoto, Eriko Watanabe

Author Affiliations +

Proceedings Volume 11925, Biomedical Imaging and Sensing Conference 2021; 119250F (2021) https://doi.org/10.1117/12.2615655
Event: SPIE Technologies and Applications of Structured Light, 2021, Online, Japan

Abstract

We developed a high-speed planar lightwave circuit digital holographic microscope (PLC-DHM) that used a thin film heater for thermo-optical phase shifter. Owing to the high efficiency of thermo-optical effect of phase shifter in PLC-DHM, a 2π phase modulation was achieved in 2.5 ms. By setting the frame rate of interference fringes acquisition to 100 fps and the phase shift interval to 10 ms, the reconstructed moving images with frame rate of 25 fps was obtained. Moreover, we obtained microscopic moving images of biological samples such as volvox and daphnia.

Citation Download Citation

Hideaki Gomi, Kazutaka Nakama, Shutaro Kodama, Katsunari Okamoto, and Eriko Watanabe "High-speed planar lightwave circuit digital holographic microscope using a thin film heater for biological samples", Proc. SPIE 11925, Biomedical Imaging and Sensing Conference 2021, 119250F (27 October 2021); https://doi.org/10.1117/12.2615655

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