"Watanabe Method" realized water measurement with THz, which was impossible

MiMoi uses terahertz electromagnetic wave measurement technology that uses a femtosecond (1 trillionth of a second) pulsed light source as a basic technology. However, terahertz waves absorb too much water, and no information can be obtained if the thickness is 1 mm. If a thin liquid film is made with a cell, multiple reflections and contamination on the surface of the plate will interfere with the measurement.

Watanabe method created a thin, uniform liquid film of several tens of microns in the air, enabling direct measurement using terahertz waves. In addition, the use of disposable cartridges has made it possible to obtain pure measurement data without the need for pretreatment and carry-over of contamination. Observation of terahertz waves linked to extremely short femtosecond measurements reflects changes in the dynamic state of water molecules, as seen in stroboscopic photography.

By accumulating these complex ideas, the liquid state can be measured non-destructively and instantaneously at the molecular level.

Conventional measurements can be broadly divided into macro measurements that collectively measure changes in the entire molecular group, and micro measurements that determine the molecules and their internal structures. The world obtained by the Watanabe method is the intermolecular interaction that connects the two. It is information of the complexity as it is. The obtained data includes all liquid states, and by giving parameters related to the sensitivity of various craftsmen, it is possible to graph the liquid state indicators for a given purpose.