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Terahertz Frequency Combs: Chip‐Scale Terahertz Frequency Combs through Integrated Intersubband Polariton Bleaching (Laser Photonics Rev. 15(6)/2021)
Author(s) -
Mezzapesa Francesco P.,
Viti Leonardo,
Li Lianhe,
Pistore Valentino,
Dhillon Sukhdeep,
Davies A. Giles,
Linfield Edmund H.,
Vitiello Miriam S.
Publication year - 2021
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.202170035
Subject(s) - terahertz radiation , optoelectronics , laser , polariton , optics , photonics , photomixing , quantum cascade laser , terahertz spectroscopy and technology , far infrared laser , ultrashort pulse , materials science , physics , terahertz metamaterials
In article number 2000575, Miriam S. Vitiello and co‐workers report on an integrated architecture for the generation of high power terahertz (THz) frequency combs (FCs) comprising an ultrafast THz polaritonic reflector, exploiting intersubband cavity polaritons, and a broad bandwidth heterogeneous THz quantum cascade lasers (QCL). It is shown that the polaritonic reflector induces spectral reshaping of the QCL emission and stable FC operation over 38% of the laser operational range.