Leading the way to terahertz whispering-gallery mode photonics

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Leading the way to terahertz whispering-gallery mode photonics

DWC investigator Rainer Leonhardt and his PhD student Dominik Vogt present a featured article in APL Photonics about ultra-high quality (Q) terahertz (THz) whispering-gallery modes (WGMs) in a silicon resonator, also showcased in AIP Scilight. The achieved quality factor exceeds by far any other reported resonant structure in the terahertz frequency range, leading the way to THz WGM photonics.