Laser-Matter Interaction Science

We study the interaction between ultra-intense lasers and materials.
We develop novel ultrahigh-intensity lasers, trying to find new physics in light-matter science.

Research Topics

Ultrahigh-intensity mid-infrared lasers

We are developing mid-infrared ultrafast pulse laser at a wavelength of 3 to 5 microns. Our purpose is to generate terawatt-class mid-infrared pulses using solid-state and fiber lasers and optical parametric amplification.


Coherent X-ray generation

We are studying coherent X-ray generation using the interaction between ultra-intense lasers and solid surfaces.


S. Tokita, et al.,
    “Collimated fast electron emission from long wires
      irradiated by intense femtosecond laser pulses
    Phys. Rev. Lett. 106, 255001 (2011).

T. Kanai et al., “Quantum interference during high-order harmonic generation from aligned molecules,” Nature 435, 470 (2005).


Double beta decay

We try to observe double beta decay in 48Ca, collaborating with Osaka University and University of Fukui. The enrichment of 48Ca isotopes using a high-power laser is expected to improve the sensitivity dramatically .
We are developing a high power laser with a narrow linewidth at a wavelength of 423 nm to enrich 48Ca isotopes.




The search for Dark Matter

We try to search for unknown particles such as axions using intense lasers, collaborating with Hiroshima University and other institutions.
We try to discover low-mass particles using photons by a novel method called
in-vacuum four-wave mixing.

Femtosecond lasers for Industrial app.

In collaboration with private companies, we are developing compact, high-power femtosecond lasers for microfabrication.


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