Abstract
We present the high performance THz sources based on intracavity difference-frequency generation from mid-infrared quantum cascade lasers. Room temperature single-mode operation in a wide THz spectral range of 1-4.6 THz is demonstrated from our Čerenkov phase-matched THz sources with dual-period DFB gratings. High THz power up to 215 μW at 3.5 THz is demonstrated via epi-down mounting of our THz device. The rapid development renders this type of THz sources promising local oscillators for many astronomical and medical applications.
Original language | English (US) |
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Title of host publication | Terahertz Emitters, Receivers, and Applications IV |
Volume | 8846 |
DOIs | |
State | Published - Dec 6 2013 |
Event | Terahertz Emitters, Receivers, and Applications IV - San Diego, CA, United States Duration: Aug 25 2013 → Aug 26 2013 |
Other
Other | Terahertz Emitters, Receivers, and Applications IV |
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Country/Territory | United States |
City | San Diego, CA |
Period | 8/25/13 → 8/26/13 |
Keywords
- Difference frequency generation
- Distributed feedback
- Quantum cascade lasers
- Terahertz
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics