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- W4290802816 abstract "We present a wide-field homodyne imaging system capable of recovering intensity and phase images of an object from a single camera frame at an illumination intensity significantly below the noise floor of the camera. By interfering a weak imaging signal with a much brighter reference beam we are able to image objects in the short-wave infrared down to signal intensity of $sim$$1.1$ photons per pixel per frame incident on the sensor despite the camera having a noise floor of $sim$$200$ photons per pixel. At this illumination level we operate under the conditions of a reference beam to probe beam power ratio of $sim$$300$,$000$:$1$. There is a corresponding $29.2%$ drop in resolution of the image due to the method implemented. For transmissive objects, in addition to intensity, the approach also images the phase profile of the object. We believe our demonstration could open the way to low-light imaging in domains where low noise cameras are not available, thus vastly extending the range of application for low-light imaging." @default.
- W4290802816 created "2022-08-12" @default.
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- W4290802816 date "2022-08-09" @default.
- W4290802816 modified "2023-09-30" @default.
- W4290802816 title "Imaging below the camera noise floor with a homodyne microscope" @default.
- W4290802816 doi "https://doi.org/10.48550/arxiv.2208.04898" @default.
- W4290802816 hasPublicationYear "2022" @default.
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