Phase-resolved measurement and control of ultrafast dynamics in terahertz electronic oscillators.

ABSTRACT: As a key component for next-generation wireless communications (6 G and beyond), terahertz (THz) electronic oscillators are being actively developed. Precise and dynamic phase control of ultrafast THz waveforms is essential for high-speed beam steering and high-capacity data transmission. However, measurement and control of such ultrafast dynamic process is beyond the scope of electronics due to the limited bandwidth of the electronic equipment. Here we surpass this limit by applying photonic technology. Using a femtosecond laser, we generate offset-free THz pulses to phase-lock the electronic oscillators based on resonant tunneling diode. This enables us to perform phase-resolved measurement of the emitted THz electric field waveform in time-domain with sub-cycle time resolution. Ultrafas

SUBMITTER: Arikawa T 

PROVIDER: S-EPMC11219870 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature