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physics.optics2025
Lamb-dip spectroscopy of rotational levels with UTC-PD terahertz emitter
Kohei Eguchi, Takashi Arikawa, Hiroshi Ito +1
Pump-probe saturation spectroscopy in the sub-terahertz region was performed in the rotational transition (J, K) = (16, 0) <- (15, 0) for gas-phase acetonitrile molecules in the co…
physics.optics2022
Phase-resolved measurement and control of ultrafast dynamics in terahertz electronic oscillators
Takashi Arikawa, Jaeyong Kim, Toshikazu Mukai +4
As a key component for next-generation wireless communications (6G and beyond), terahertz (THz) electronic oscillators are being actively developed. Precise and dynamic phase contr…