The progress towards terahertz quantum cascade lasers on silicon substrates

Paul, D.J. (2010) The progress towards terahertz quantum cascade lasers on silicon substrates. Laser and Photonics Reviews, 4(5), pp. 610-632. (doi:10.1002/lpor.200910038)

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A review is presented of work over the last 10 years which has been aimed at trying to produce a Si-based THz quantum cascade laser. Potential THz applications and present THz sources will be briefly discussed before the materials issues with the Si/SiGe system is discussed. Waveguide designs and waveguide losses will be presented. Experimental measurements of the non-radiative lifetimes for intersubband transitions in Si1-xGex quantum wells will be presented along with theory explaining the important scattering mechanisms which determine the lifetimes. Examples of p-type Si/SiGe quantum cascade designs with the experimental electroluminescence will be reviewed and examples of n-type Si-based designs will be presented. In the conclusion designs and structures will be discussed with the greatest potential to achieve an electrically pumped Si-based THz laser.

Item Type:Articles (Other)
Glasgow Author(s) Enlighten ID:Paul, Professor Douglas
Authors: Paul, D.J.
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Laser and Photonics Reviews
ISSN (Online):1863-8899
Published Online:28 September 2009

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