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Search: WFRF:(Larsson Anders 1957 ) > (2011) > Andersson Thorvald 1946

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1.	Andersson, Thorvald, 1946, et al. (author) Design and Fabrication of AlN/GaN Heterostructures for Intersubband Technology 2011 In: ISPlasma 2011, March 6-9, 2011 Nagoya, Japan. Conference paper (other academic/artistic)
2.	Stattin, Martin, 1983, et al. (author) Waveguides for nitride based quantum cascade lasers 2011 In: Physica Status Solidi (C) Current Topics in Solid State Physics. - : Wiley. - 1610-1642 .- 1862-6351. ; 8:7-8, s. 2357-2359 Journal article (peer-reviewed)abstract Waveguide designs for AlGaN-based near-infrared quantum cascade lasers are investigated using a finite-difference method mode solver. Because of the negligibly small refractive index difference between the AlN/GaN/AlGaN gain region and the surrounding AlGaN current injection and extraction layers, a low refractive index substrate (sapphire) and a low refractive index dielectric (SiO2) are used for vertical confinement of the optical field. A ridge waveguide with an off-center contact metallization is used for lateral confinement. The off-center contact allows for the propagation of a TM mode with low metal induced loss and sufficient optical confinement in the gain region. A viable waveguide design with a metal-induced loss of 6.1 cm-1 and a confinement factor of 0.52 is demonstrated.

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Type of publication: journal article (1); conference paper (1)

Type of content: other academic/artistic (1); peer-reviewed (1)

Author/Editor: Larsson, Anders, 195 ... (2); Andersson, Thorv... (2)Undo refine; Berland, Kristian, 1 ... (2); Hyldgaard, Per, 1964 (2); Stattin, Martin, 198 ... (2); Wang, Shu Min, 1963 (1); show more...; Ive, Tommy, 1968 (1); Farivar, Rashid, 198 ... (1); Fälth, Fredrik, 1973 (1); show less...

University: Chalmers University of Technology (2)

Language: English (2)

Research subject (UKÄ/SCB): Engineering and Technology (2)

Year: 2011 (2)Undo refine

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