Title :
Free carrier absorption in Sn based Group-IV alloys
Author :
Chakraborty, Vedatrayee ; Mukhopadhyay, Bodhibrata ; Basu, Palash Kumar
Author_Institution :
Inst. of Radiophys. & Electron., Univ. of Calcutta, Kolkata, India
Abstract :
The free carrier absorptions in strained Ge, relaxed GeSn and strained GeSn are estimated considering different scattering mechanisms, namely, acoustic phonon, non polar optical phonon and intervalley phonon scatterings. The change in absorption coefficient for different Sn concentration in the alloys is also reported.
Keywords :
absorption coefficients; germanium alloys; phonon spectra; tin alloys; GeSn; absorption coefficient; acoustic phonon scattering; free carrier absorption; intervalley phonon scattering; polar optical phonon scattering; scattering mechanisms; Free carrier absorption; acoustic phonon; intervalley phonon; optical phonon;
Conference_Titel :
Computers and Devices for Communication (CODEC), 2012 5th International Conference on
Conference_Location :
Kolkata
Print_ISBN :
978-1-4673-2619-3
DOI :
10.1109/CODEC.2012.6509305
