In a recent article [ Opt. Lett. 34, 2507 (2009) ], the authors concluded that the imaginary part of the complex conductivity σ of an AlInN film was negative. However, this result was obtained using an approximation that is not applicable in this case. Using the correct equation, the data can be well described with a positive imaginary part of σ.
© 2010 Optical Society of America
Original Manuscript: September 18, 2009
Revised Manuscript: November 17, 2009
Manuscript Accepted: November 20, 2009
Published: January 15, 2010
Arno Schneider, "Terahertz characterization of semiconductor alloy AlInN: negative imaginary conductivity and its meaning: comment," Opt. Lett. 35, 265-265 (2010)