publication . Article . 2008

Simulated [111] Si–SiGe terahertz quantum cascade laser

L. Lever; A. Valavanis; Z. Ikonić; R. W. Kelsall;
Open Access English
  • Published: 14 Jan 2008
  • Publisher: American Institute of Physics
  • Country: United Kingdom
The prospect of developing a silicon laser has long been \ud an elusive goal, mainly due to the indirect band gap and large effective carrier masses. We present a design for a terahertz intersubband laser grown on the [111] crystal plane and simulate performance using a rate equation method including scattering due to alloy disorder, interface roughness, carrier-phonon and Coulombic interactions. We predict gain greater than 40 cm<sup>-</sup>1 and a threshold current density of 70 A/cm<sup>2</sup>.\ud
free text keywords: Physics and Astronomy (miscellaneous), Rate equation, Far-infrared laser, Physics, Optics, business.industry, business, Optoelectronics, Laser power scaling, Terahertz radiation, Terahertz spectroscopy and technology, Photomixing, Laser, law.invention, law, Direct and indirect band gaps
28 references, page 1 of 2

2 )120 m


isn 80

tn 60


Electric field (kV/cm) 14 16 ∗ Electronic address:

[1] L. Pavesi, Towards the First Silicon Laser (Kluwer Academic Publishers, 2003).

[2] G. Dehlinger, L. Diehl, U. Gennser, J. Sigg, J. Faist, K. Ensslin, D. Grutzmacher, and E. Muller, Science 290, 2277 (2000).

[3] R. Bates, S. A. Lynch, D. J. Paul, Z. Ikoni´c, R. W. Kelsall, P. Harrison, S. L. Liew, D. J. Norris, A. G. Cullis, W. R. Tribe, et al., Appl. Phys. Lett. 83, 4092 (2003).

[4] R. W. Kelsall and R. A. Soref, Int. J. High Speed Electron. Syst. 13, 547 (2003).

[5] K. Driscoll and R. Paiella, Appl. Phys. Lett. 89, 191110 (2006).

[6] G. Sun, H. H. Cheng, J. Men´endez, J. B. Khurgin, and R. A. Soref, Appl. Phys. Lett. 90, 251105 (2007).

[7] J. Lumin. 121, 311 (2006).

[8] A. Rahman, M. S. Lundstrom, and A. W. Ghosh, J. Appl. Phys. 97, 053702 (2005).

[9] M. Kahan, M. Chi, and L. Friedman, J. Appl. Phys. 75, 8012 (1994).

28 references, page 1 of 2
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue