Terahertz emitters at Center for Quantum Devices: recent advances and future trends

Manijeh Razeghi

doi:10.1117/12.2277609

23 August 2017 Terahertz emitters at Center for Quantum Devices: recent advances and future trends

Manijeh Razeghi

Proceedings Volume 10383, Terahertz Emitters, Receivers, and Applications VIII; 1038305 (2017) https://doi.org/10.1117/12.2277609
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

This paper reviews the recent advances and future trends of terahertz (THz) emitters at CQD/NU, highlights the high-performance THz sources based on intracavity nonlinear frequency generation in mid-infrared quantum cascade lasers. Significant performance improvements of our THz sources in the power, wall plug efficiency are achieved by systematic optimizing the device's active region, waveguide, and chip bonding strategy. High THz power up to 1.9 mW and 0.014 mW for pulsed mode and continuous wave operations at room temperature are demonstrated, respectively. Even higher power and efficiency are envisioned based on enhancements in outcoupling efficiency and mid-IR performance. Our compact THz device with high power and wide tuning range is highly suitable for the imaging, sensing, spectroscopy, medical diagnosis, and many other applications.

Citation Download Citation

Manijeh Razeghi "Terahertz emitters at Center for Quantum Devices: recent advances and future trends", Proc. SPIE 10383, Terahertz Emitters, Receivers, and Applications VIII, 1038305 (23 August 2017); https://doi.org/10.1117/12.2277609

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