Enabling single photon imaging at kHz frame rates using digital holography
Wolley O, Mekhail S, Gregory T, Moreau PA, Leuchs G, Padgett MJ (2024)
Publication Type: Conference contribution
Publication year: 2024
Journal
Publisher: SPIE
Book Volume: 12853
Conference Proceedings Title: Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Event location: San Francisco, CA, USA
ISBN: 9781510669659
DOI: 10.1117/12.3001443
Abstract
Cameras designed to operate at kHz frame rates suffer from higher noise levels due to increased readout rate. This can mean in scenarios where it is not possible to increase the illumination level, for example biomedical imaging applications, that objects may be lost in noise. The coherent gain effect inherent in an unbalanced holographic imaging system provides a solution, by amplifying the information in the signal beam with a bright reference beam. The resulting interference pattern can be detected above the noise floor of the camera, and intensity and phase images of the object reconstructed with off-Axis holography techniques. This allows for a large improvement in the signal to noise ratio (SNR) of images of the object without having to increase the illumination level. We show that using this method it is possible to obtain images with a SNR ≥ 1 down to a detected intensity on the camera of ∼1 photon per pixel per frame.
Involved external institutions
University of Glasgow
United Kingdom (GB)
National Cheng Kung University
Taiwan (TW)
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Germany (DE)
United Kingdom (GB)
National Cheng Kung University
Taiwan (TW)
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Germany (DE)
How to cite
APA:
Wolley, O., Mekhail, S., Gregory, T., Moreau, P.A., Leuchs, G., & Padgett, M.J. (2024). Enabling single photon imaging at kHz frame rates using digital holography. In Kevin K. Tsia, Keisuke Goda (Eds.), Progress in Biomedical Optics and Imaging - Proceedings of SPIE. San Francisco, CA, USA: SPIE.
MLA:
Wolley, Osian, et al. "Enabling single photon imaging at kHz frame rates using digital holography." Proceedings of the High-Speed Biomedical Imaging and Spectroscopy IX 2024, San Francisco, CA, USA Ed. Kevin K. Tsia, Keisuke Goda, SPIE, 2024.
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