Quantum-enhanced stimulated Raman scattering microscopy in a high-power regime

Z Xu, K Oguchi, Y Taguchi, S Takahashi, Y Sano… - Optics Letters, 2022 - opg.optica.org
Quantum-enhanced stimulated Raman scattering (QESRS) microscopy is expected to
realize molecular vibrational imaging with sub-shot-noise sensitivity, so that weak signals …

Quantum noise dynamics in nonlinear pulse propagation

E Ng, R Yanagimoto, M Jankowski, MM Fejer… - arxiv preprint arxiv …, 2023 - arxiv.org
The propagation of ultrafast pulses in dispersion-engineered waveguides, exhibiting strong
field confinement in both space and time, is a promising avenue towards single-photon …

Atomic Spin Detection Method Based on Spin‐Selective Beam‐Splitting Metasurface

Y Xu, Y Xu, J Sun, Y Mao, Z Chai… - Advanced Optical …, 2024 - Wiley Online Library
The current polarization differential detection method used for atomic co‐magnetometers
and other atomic sensors usually depends on the beam splitting plane at 45° from the …

Stimulated Raman scattering spectroscopy with quantum-enhanced balanced detection

Z Xu, K Oguchi, Y Taguchi, Y Sano, Y Miyawaki… - Optics …, 2022 - opg.optica.org
Quantum-enhanced stimulated Raman scattering (QE-SRS) is a promising technique for
highly sensitive molecular vibrational imaging and spectroscopy surpassing the shot noise …

Super-resolution stimulated Raman scattering microscopy enhanced by quantum light and deconvolution

L Gong, S Lin, Z Huang - Optics Letters, 2023 - opg.optica.org
Stimulated Raman scattering (SRS) microscopy is a powerful tool for label-free chemical
contrast bio-imaging. However, its spatial resolution is limited by diffraction; its noise level is …

Dual-polarization quantum-enhanced stimulated Raman scattering microscopy

Z Xu, K Oguchi, S Nitanai, Y Taguchi, Y Sano… - Applied Physics …, 2023 - pubs.aip.org
In this paper, we propose an approach for implementing quantum-enhanced stimulated
Raman scattering (QESRS) microscopy using a dual-polarization scheme. This approach …

Phase locking of squeezed vacuum generated by a single-pass optical parametric amplifier

Y Taguchi, K Oguchi, Z Xu, D Cheon, S Takahashi… - Optics …, 2022 - opg.optica.org
In high-precision optical measurements, squeezed vacuum states are a promising resource
for reducing the shot noise. To utilize a squeezed vacuum, it is important to lock the phase of …

Effects of higher-order spatial modes on the squeezing level in optical parametric amplification with waveguides

Y Sano, Y Taguchi, K Oguchi, Y Ozeki - Journal of the Optical Society …, 2023 - opg.optica.org
We investigate a limiting factor of waveguide optical parametric amplifiers used for
generating broadband squeezed light. We found that spatially non-degenerate optical …

Sensitive detection of alkyne-terminated hydrophobic drug by surface-enhanced stimulated Raman scattering in cetyltrimethylammonium bromide-coated gold …

T Mizuguchi, M Nuriya, M Yasui, T Iino… - Applied Physics …, 2021 - iopscience.iop.org
We demonstrate the sensitive detection of alkyne-terminated ethinylestradiol (EE2) in a
cetyltrimethylammonium bromide (CTAB)-coated gold nanorod (AuNR) suspension by …

Precise amplitude and phase matching by integrating spatial light modulation and digital holography for pulsed squeezing

Y Sano, K Oguchi, Z Xu, Y Taguchi… - Optical and Quantum …, 2022 - spiedigitallibrary.org
Quantum-enhanced measurements using squeezed light provide sensitivities beyond the
shot-noise limit and have attracted much attention in many fields such as spectroscopy …