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Broadly tunable monolithic room-temperature terahertz quantum cascade laser sources

Author

Listed:
  • Seungyong Jung

    (The University of Texas at Austin)

  • Aiting Jiang

    (The University of Texas at Austin)

  • Yifan Jiang

    (The University of Texas at Austin)

  • Karun Vijayraghavan

    (The University of Texas at Austin)

  • Xiaojun Wang

    (Adtech Optics, Inc., 18007 Cortney Court, City of Industry)

  • Mariano Troccoli

    (Adtech Optics, Inc., 18007 Cortney Court, City of Industry)

  • Mikhail A. Belkin

    (The University of Texas at Austin)

Abstract

Electrically pumped room-temperature semiconductor sources of tunable terahertz radiation in 1–5 THz spectral range are highly desired to enable compact instrumentation for THz sensing and spectroscopy. Quantum cascade lasers with intra-cavity difference-frequency generation are currently the only room-temperature electrically pumped semiconductor sources that can operate in the entire 1–5 THz spectral range. Here we demonstrate that this technology is suitable to implementing monolithic room-temperature terahertz tuners with broadband electrical control of the emission frequency. Experimentally, we demonstrate ridge waveguide devices electrically tunable between 3.44 and 4.02 THz.

Suggested Citation

  • Seungyong Jung & Aiting Jiang & Yifan Jiang & Karun Vijayraghavan & Xiaojun Wang & Mariano Troccoli & Mikhail A. Belkin, 2014. "Broadly tunable monolithic room-temperature terahertz quantum cascade laser sources," Nature Communications, Nature, vol. 5(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5267
    DOI: 10.1038/ncomms5267
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    Cited by:

    1. Wenting Wang & Ping-Keng Lu & Abhinav Kumar Vinod & Deniz Turan & James F. McMillan & Hao Liu & Mingbin Yu & Dim-Lee Kwong & Mona Jarrahi & Chee Wei Wong, 2022. "Coherent terahertz radiation with 2.8-octave tunability through chip-scale photomixed microresonator optical parametric oscillation," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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