We live side by side with many kinds of waves. Whenever we communicate with someone using a smart phone, we are using radio waves, visible light, sound waves, and even vibrational waves. All these waves follow the laws of physics. If we can manipulate these waves freely, then we can make our lives even more convenient. When looked at from all sides, physics shows us some extremely interesting possibilities. For example, in 1998, C. M. Bender et al. stated that eigenvalues of a system can be expressed as real numbers if the gain and loss of the system are combined. In 2021, we applied the idea behind this physical law to the field of power electronics and succeeded in suppressing unwanted oscillation that was causing a bottleneck in high-speed switching. Working together with the Toyota group of companies and other collaborators, we are trying to expand on concepts of quantum mechanics such as these to help realize significant devices with the capability of opening up an even brighter future.
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Lee, T., Hashemi, D., Yatsugi, K., Yasunishi, M., Yoshimoto, H. and Iizuka, H., “Fano Resonance among Magnetic Coils for Midrange Position Sensing Capability”, IEEE Access, Vol.9 (2021), pp.15623-15632.
Lee, T., Noumura, T., Su, X. and H. Iizuka, “Fano-like Acoustic Resonance for Subwavelength Directional Sensing: 0-360 Degree Measurement”, Advanced Science, Vol.7 (2020), 1903101.
Iizuka, H. and Fan, S., “Significant Enhancement of Near-field Electromagnetic Heat Transfer in a Multilayer Structure through Multiple Surface-states Coupling”, Physical Review Letters, Vol. 120 (2018), 063901.
Ito, K., Nishikawa, K., Miura, A., Toshiyoshi, H. and Iizuka, H., “Dynamic Modulation of Radiative Heat Transfer beyond the Blackbody Limit”, Nano Letters, Vol. 17 (2017), pp.4347-4353.