Room temperature operation of Ge/SixGe1−x−ySny terahertz quantum cascade lasers predicted using extended combined resonant tunneling and rate equation model Room temperature operation of Ge/SixGe1−x−ySny terahertz quantum cascade lasers predicted using extended combined resonant tunneling and rate equation model - December 15, 2025reprint

Midinfrared Semiconductor Photonics – A Roadmap:Quantum Cascade Lasers arXiv:2511.03868 [physics.optics] - November 7, 2025

CQD former student received Apple Display’s “Unsung Hero” award
Former Phd student of CQD "Abbas Haddidi "received Apple Display’s “Unsung Hero” award this year, recognized as the “Tech Guru.”
January 21, 2026   [read article]

Invited-Talk - Spie Photonics West Quantum Sensing, Imaging, and Precision Metrology IV
Professor Razeghi deliver Invited-Talk - Spie Photonics West Quantum Sensing, Imaging, and Precision Metrology IV, California, US
January 18, 2026   [read article]

Prof. Razeghi will deliver plenary talk in Materials Arena 2026
2nd International summit on Materials Science and Engineering
Ambassador Hotel Bangkok, Thailand
March 19, 2026   [conference link]

Plenary Speaker
International Experts Forum on Laser Peening and Related Phenomena (IESLPRP2026)
Antwerp, Belgium
April 8, 2026   [conference link]

1. Band-structure-engineered high-gain LWIR photodetector based on a type-II superlattice Light: Science & Applications volume 10, Article number: 17 (2021) https://doi.org/10.1038/s41377-020-00453-x January 14, 2021reprint

2. nBn extended short-wavelength infrared focal plane array Optics Letters Vol. 43, Issue 3, pp. 591-594 February 1, 2018reprint

3. High-power, high-wall-plug-efficiency quantum cascade lasers with high-brightness in continuous wave operation at 3–300μm Razeghi et al. Light: Science & Applications (2025) 14:252 July 25, 2025reprint

4. Room temperature operation of Ge/SixGe1−x−ySny terahertz quantum cascade lasers predicted using extended combined resonant tunneling and rate equation model Room temperature operation of Ge/SixGe1−x−ySny terahertz quantum cascade lasers predicted using extended combined resonant tunneling and rate equation model December 15, 2025reprint

5. High power quantum cascade lasers New Journal of Physics (NJP), Volume 11, p. 125017 December 1, 2009reprint