Title :
2.4-2.5 THz Quantum Cascade Lasers Obtained by Tuning the Thicknesses of a Structure Emitting at 2.9 THz
Author :
Li, Jin ; Qian, Xifeng ; Liu, Wayne ; Vangala, Shivashankar R. ; Goodhue, William D. ; Danylov, Andriy A. ; Waldman, Jerry ; Giles, Robert H. ; Linden, Kurt J.
Author_Institution :
Univ. of Massachusetts Lowell, Lowell
Abstract :
In this paper, the authors reported the success in tuning the emission frequency of a THz QCL to lower frequencies (-0.5 THz) by increasing the thicknesses of every well and barrier proportionally. It can be an important approach to obtain stable single mode terahertz sources at specific frequencies, which is important to applications such as heterodyne detection systems.
Keywords :
laser modes; laser tuning; quantum cascade lasers; submillimetre wave lasers; THz QCL; frequency 2.4 THz to 2.5 THz; frequency 2.9 THz; laser tuning; quantum cascade lasers; single mode terahertz sources; Contacts; Gold; Laser modes; Laser tuning; Optical pulses; Packaging; Physics; Quantum cascade lasers; Substrates; Surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2007. LEOS 2007. The 20th Annual Meeting of the IEEE
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-0925-9
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2007.4382680
