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Showing 1–4 of 4 results
Advanced filters: Author: Katia Garrasi Clear advanced filters

  • Photonic solutions for generating free space millimeter radiation is a fast developing field that combines optoelectronics and RF domains but has many challenges. Here the authors present a quantum cascade laser (QCL) based solution for THz laser emission and millimeter wave generation in a single device.

    • Valentino Pistore
    • Hanond Nong
    • Sukhdeep S. Dhillon
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Quantum cascade lasers are compact sources, but simultaneously achieving cw operation, low divergence and single-mode emission has proven difficult. Here, Biasco et al. use a combination of distributed feedback and outcoupling via hole arrays, improving the performance of such a terahertz laser.

    • Simone Biasco
    • Katia Garrasi
    • Miriam S. Vitiello
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Here, the authors demonstrate full stabilization and control of the two key parameters of a four-wavemixing-based quantum cascade laser comb with metrological precision. These fully-controlled, frequency scalable comb emitters will allow an increasing number of mid- and far-IR applications.

    • Luigi Consolino
    • Malik Nafa
    • Saverio Bartalini
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • THz dual comb spectroscopy may be performed using down-converted or quantum cascade laser systems, forcing a choice between absolute frequency referencing and high sensitivity. Here, these strengths are combined in a hybrid, dual frequency comb spectrometer, capable of high-accuracy measurements on molecular transitions.

    • Luigi Consolino
    • Malik Nafa
    • Paolo De Natale
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-9