THz frequency combs form dispersion-compensated antenna-coupled ring quantum cascade lasers Paolo Micheletti, Urban Senica, Andres Forrer, Sara Cibella, Giudo Torrioli, Mattias Beck, Jerome Faist and Giacomo Scalari EPJ Web Conf., 266 (2022) 09004 Published online: 13 October 2022 DOI: 10.1051/epjconf/202226609004