Explanipedia

Observation of in-plane moisture distribution of a drying process using terahertz waves Open

Shinsuke Tanaka, Yoshihiro Harada, Shinichi Kuramoto, Masami Kadonaga, Adrian Dobroiu , et al. · 2024

Resonant-Tunneling-Diode Terahertz Oscillators and Its Radar Applications Open

Safumi Suzuki, Adrian Dobroiu, Masahiro ASADA · 2022

Discrete Fourier Transform Radar in the Terahertz-Wave Range Based on a Resonant-Tunneling-Diode Oscillator Open

Hiroki Konno, Adrian Dobroiu, Safumi Suzuki, Masahiro Asada, Hiroshi Itô · 2021

We used a resonant-tunneling-diode (RTD) oscillator as the source of a terahertz-wave radar based on the principle of the swept-source optical coherence tomography (SS-OCT). Unlike similar reports in the terahertz range, we apply the stepw…

Subcarrier Frequency-Modulated Continuous-Wave Radar in the Terahertz Range Based on a Resonant-Tunneling-Diode Oscillator Open

Adrian Dobroiu, Yusuke Shirakawa, Safumi Suzuki, Masahiro Asada, Hiroshi Itô · 2020

We introduce a new principle for distance measurement in the terahertz-wave range using a resonant-tunneling-diode (RTD) oscillator as a source at 511 GHz and relying on the frequency-modulated continuous-wave (FMCW) radar technique. Unlik…

Amplitude-modulated continuous-wave radar in the terahertz range using lock-in phase measurement Open

Adrian Dobroiu, Ryotaka Wakasugi, Yusuke Shirakawa, Safumi Suzuki, Masahiro Asada · 2020

We present the principle and the experimental verification of a distance measurement method based on the propagation of terahertz waves. The method relies on modulating the amplitude of a resonant-tunneling-diode (RTD) oscillator used as t…

Front Matter: Volume 11124 Open

Manijeh Razeghi, А. Н. Баранов, Miriam S. Vitiello, Al Abbes, Al Bulooshi , et al. · 2019

Toward a solid-state, compact, terahertz-wave radar Open

Adrian Dobroiu, Ryotaka Wakasugi, Safumi Suzuki, Masahiro Asada · 2019

We report the principle and first experimental results on a terahertz-wave radar based on a resonant-tunneling diode (RTD) working as a 522 GHz radiation source and a Schottky barrier diode (SBD) as a detector. By modulating the output pow…

Absolute and Precise Terahertz-Wave Radar Based on an Amplitude-Modulated Resonant-Tunneling-Diode Oscillator Open

Adrian Dobroiu, Ryotaka Wakasugi, Yusuke Shirakawa, Safumi Suzuki, Masahiro Asada · 2018

We present the principle of a terahertz-wave radar and its proof-of-concept experimental verification. The radar is based on a 522 GHz resonant-tunneling-diode oscillator, whose terahertz output power can be easily modulated by superimposi…

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