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Quantum enhancement helps to improve the sensitivity of shot-noise-limited systems, such as stimulated Raman scattering (SRS) microscopes [1]. By applying squeezed light, sub-shot-noise sensitivity was reported in quantum- enhanced SRS (QE-SRS) spectroscopy [2] and microscopy [3]. But the optical power of squeezed light limited the achievable sensitivity in the previously proposed strategies. To facilitate the sensitivity in QE-SRS, we proposed another approach based on quantum-enhanced balanced detection [4], which is advantageous for high-power QE-SRS. Based on this approach, we achieved QE-SRS spectroscopy [5] and here we report our newest progress on QE-SRS imaging.
© 2022 Japan Society of Applied Physics, Optica Publishing Group
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