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arXiv · 2004.10733

Quantum-enhanced stimulated emission microscopy

Gil Triginer Garces·Helen M. Chrzanowski·Shakib Daryanoosh·Valerian Thiel·Anna L. Marchant·Raj B. Patel·Peter C. Humphreys·Animesh Datta·Ian A. Walmsley
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Abstract

Nonlinear optical microscopy techniques have emerged as a set of successful tools for biological imaging. Stimulated emission microscopy belongs to a small subset of pump-probe techniques which can image non-fluorescent samples without requiring fluorescent labelling. However, its sensitivity has been shown to be ultimately limited by the quantum fluctuations in the probe beam. We propose and experimentally implement sub-shot-noise limited stimulated emission microscopy by preparing the probe pulse in an intensity-squeezed state. This technique paves the way for imaging delicate biological samples that have no detectable fluorescence with sensitivity beyond standard quantum fluctuations.

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Gil Triginer Garces, Helen M. Chrzanowski, Shakib Daryanoosh, Valerian Thiel, Anna L. Marchant, Raj B. Patel, Peter C. Humphreys, Animesh Datta, Ian A. Walmsley. 2020-04-22. Quantum-enhanced stimulated emission microscopy. https://doi.org/10.1063/5.0009681

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