425 citations · 1.4k across the 31 of their papers we have counts for
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Correction of broadband terahertz electro-optic sampling with GaSe crystals
Kotaro Ogawa, Natsuki Kanda, Yuta Murotani +3
Gallium selenide (GaSe) is an efficient nonlinear crystal for electro-optic (EO) sampling in the multi-terahertz (THz) frequency range. However, the lattice resonance at several TH…
Robust asynchronous optical sampling terahertz spectroscopy using commercially available free-running lasers
Mayuri Nakagawa, Natsuki Kanda, Hidekazu Nakamae +2
This study presents asynchronous optical sampling (ASOPS) terahertz spectroscopy using commercially available Ti:Sapphire lasers without stabilizing repetition frequency. Our postp…
Programmable generation of counterrotating bicircular light pulses in the multi-terahertz frequency range
Kotaro Ogawa, Natsuki Kanda, Yuta Murotani +1
The manipulation of solid states using intense infrared or terahertz light fields is a pivotal area in contemporary ultrafast photonics research. While conventional circular polari…
Time-domain characterization of electric field vector in multi-terahertz pulses using polarization-modulated electro-optic sampling
Natsuki Kanda, Mayuri Nakagawa, Yuta Murotani +1
We demonstrated characterizing the electric field waveform of multi-terahertz pulses (10-50 THz) as vector quantities in the time domain by applying the polarization modulated elec…
Jitter correction for asynchronous optical sampling terahertz spectroscopy using free-running pulsed lasers
Mayuri Nakagawa, Natsuki Kanda, Toshio Otsu +3
We demonstrate a jitter correction method for asynchronous optical sampling (ASOPS) terahertz (THz) time-domain spectroscopy using two free-running oscillators. This method simulta…
Optical parametric amplification of phase-stable terahertz-to-midinfrared pulses studied in the time domain
Natsuki Kanda, Nobuhisa Ishii, Jiro Itatani +1
We report optical parametric amplification (OPA) of low-frequency infrared pulses in the intermediate region between terahertz (THz) frequency and mid-infrared (MIR), i.e., from 16…