activity
20122026
most citedCoherent Raman spectro-imaging with laser frequency combs

484 citations · 2.6k across the 39 of their papers we have counts for

collaborators

40 papers

physics.optics2026

Sub-shot-noise mid-infrared photothermal measurements using twin beams

Kazuki Hashimoto, Takuro Ideguchi

Mid-infrared photothermal (MIP) measurement probes refractive-index changes induced by mid-infrared (MIR) absorption using visible or near-infrared light and has recently emerged a…

physics.optics2026

Ghost infrared spectroscopy with bright twin beams

Akira Kawai, Makoto Shoshin, Kazuki Hashimoto +1

Frequency-correlated light offers a route to mid-infrared (MIR) spectroscopy without direct spectral detection in the MIR. Previous MIR ghost spectroscopy has mainly relied on low-…

physics.optics2026

Femtosecond-to-millisecond holographic imaging of laser ablation dynamics

Shotaro Kawano, Keiichiro Toda, Miu Tamamitsu +3

Femtosecond laser ablation redistributes optically deposited energy across electronic, structural, mechanical, and thermal degrees of freedom over timescales from femtoseconds to m…

physics.optics2026

Pulse-to-pulse spectral phase characterization of mid-infrared pulses at megahertz rates

Zhihao Deng, Zicong Xu, Kazuki Hashimoto +3

Pulse-resolved spectral phase measurement of mid-infrared (MIR) pulses is essential for many applications, from precise waveform control to ultrafast quantum optics. However, conve…

physics.optics2026

A unified framework for sensitivity comparison across stimulated Raman, stimulated Raman photothermal, and mid-infrared photothermal microscopy

Keiichiro Toda, Takuro Ideguchi

Label-free vibrational microscopy based on Raman scattering and mid-infrared (MIR) absorption has advanced biological imaging through the development of diverse high-sensitivity mo…

physics.optics2026

Mid-infrared photothermal imaging flow cytometry

Yusei Sugawara, Keiichiro Toda, Genki Ishigane +2

Imaging flow cytometry (IFC) enables high-throughput single-cell analysis but largely relies on fluorescence labeling to obtain molecular specificity. Label-free vibrational imagin…