[10p-F212-1~14] 3.9 Optical quantum physics and technologies

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[10p-F212-1] [The 60th Young Scientist Presentation Award Speech] Time-stretch mid-infrared spectroscopy with undetected photons

〇Makoto Shoshin¹, Kazuki Hashimoto¹, Tatsuki Yamazumi¹, Akira Kawai¹, Ryoichi Horisaki², Takuro Ideguchi^1,3,4 (1.Sci., The Univ. of Tokyo, 2.IST, The Univ. of Tokyo, 3.GSFS, The Univ. of Tokyo, 4.RIKEN)

Keywords:

infrared spectroscopy,nonlinear interference,parametric down-conversion

Mid-infrared spectroscopy with undetected photons (MIR-SUP) enables mid-infrared spectroscopy using visible and near-infrared light sources and photodetectors. In conventional MIR-SUP, the spectral acquisition rate has been limited to below 1 Spectrum/s due to the low detected photon flux under continuous-wave excitation and the slow spectroscopic methods employed even under pulsed excitation. In this study, we combined pulsed-excitation MIR-SUP with time-stretch spectroscopy and achieved a spectral acquisition rate of 2 kSpectra/s.