Effect of waveguide sidewall roughness on the threshold current density and slope efficiency of quantum cascade lasers
Fatima Toor, Deborah L. Sivco, Hao E. Liu, and Claire F. Gmachl
We report on a study to determine the effect of waveguide sidewall roughness on quantum cascade (QC) laser performance using two two-wavelength heterogeneous QC laser structures, one with emission wavelengths of 7.0 [mu]m/11.2 [mu]m, and the other with 8.7 [mu]m/12.0 [mu]m. For the range of roug ... [Appl. Phys. Lett. 93, 031104 (2008)] published Mon Jul 21, 2008.
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We report on a study to determine the effect of waveguide sidewall roughness on quantum cascade (QC) laser performance using two two-wavelength heterogeneous QC laser structures, one with emission wavelengths of 7.0 [mu]m/11.2 [mu]m, and the other with 8.7 [mu]m/12.0 [mu]m. For the range of roug ... [Appl. Phys. Lett. 93, 031104 (2008)] published Mon Jul 21, 2008.
Read full Article »
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