Twin-beam sub-shot-noise raster-scanning microscope

J. Sabines-Chesterking, A. R. McMillan, P. A. Moreau, S. K. Joshi, S. Knauer, E. Johnston, J. G. Rarity, J. C. F. Matthews

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By exploiting the quantised nature of light, we demonstrate a sub-shot-noise scanning optical transmittance microscope. Our microscope demonstrates, with micron scale resolution, a factor of improvement in precision of 1.76(9) in transmittance estimation gained per probe photon relative to the theoretical model, a shot-noise-limited source of light, in an equivalent single-pass classical version of the same experiment using the same number of photons detected with a 90% efficient detector. This would allow us to observe photosensitive samples with nearly twice the precision, without sacrificing image resolution or increasing optical power to improve signal-to-noise ratio. Our setup uses correlated twin-beams produced by parametric down-conversion, and a hybrid detection scheme comprising photon-counting-based feed-forward and a highly efficient CCD camera.
Original languageEnglish
Pages (from-to)30810-30818
Number of pages9
JournalOptics Express
Issue number21
Publication statusPublished - 10 Oct 2019

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    Twin-beam sub-shot-noise raster-scanning microscope

    Matthews, J. C. F. (Creator), Mcmillan, A. R. (Creator), Sabines Chesterking, J. J. (Creator), Joshi, S. K. (Contributor), Moreau, P. (Contributor), Knauer, S. (Contributor), Johnston, E. (Contributor) & Rarity, J. G. (Contributor), University of Bristol, 14 Oct 2019


    Cite this

    Sabines-Chesterking, J., McMillan, A. R., Moreau, P. A., Joshi, S. K., Knauer, S., Johnston, E., Rarity, J. G., & Matthews, J. C. F. (2019). Twin-beam sub-shot-noise raster-scanning microscope. Optics Express, 27(21), 30810-30818.