Optical wavefront control is a cutting edge technique for freely manipulating the wavefront of light (spatial distribution of light phase). This technique is essential for achieving manipulation of minute objects such as molecular motors, 3D super-resolution microscopic measurement inside biological samples, high-precision laser processing, 3D displays and super-high density memory by hologram and other sophisticated tasks. Based on our unique technology for spatial light phase modulators (Liquid Crystal On Silicon - Spatial Light Modulator or LCOS-SLM) and intelligent vision sensors or IVS, we are conducting research in advanced optical wavefront control for applications in medical equipment and microscopes.
Terahertz waves are far-infrared rays found in the region between light and radio waves. In terms of wavelength, terahertz waves range from 30 μm to 3 mm. This wavelength region is still unknown and unexplored but contains great possibilities. To utilize terahertz waves, we have been developing photonic devices including light sources, detectors, and optical components as well as conducting applied research on spectrophotometry for drug analysis and non-destructive inspection imaging.
A soft X-ray 3D microscope consists of a compact X-ray source and X-ray reflective optics. It is small enough to be installed in a laboratory room and visualizes 3D structures with high resolution. It captures high-contrast images when observing biological samples and light element materials since those samples and materials absorb most soft X-rays below a few kilo-electron volts.
The so-called optical torque wrench is a technique for applying a rotational force to matter by making use of an optical force having a special property called the “optical vortex.” Creating an optical vortex requires advanced optical technology and we have in fact established high-level technology for generating an optical vortex.
We are working to clarify the interaction between short-pulse light and matter by controlling the temporal and spatial properties of ultrashort pulse light and in this way promote research into opening up new applications. Specific applications include laser processing, microscopic bio-imaging, and terahertz wave generation, which are currently in progress by establishing high-precision pulsed light control technology that combines a “femtosecond pulsed laser” with a “Liquid Crystal On Silicon - Spatial Light Modulator (LCOS-SLM) and waveform measurement technology (optical pulse ruler or OPR) that utilizes nonlinear optics and optical fibers.
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