Sökning: onr:"swepub:oai:research.chalmers.se:6fd2a8c0-0df5-4672-a357-5dcbb447b26a" >
Waveguides for nitr...
Waveguides for nitride based quantum cascade lasers
-
- Stattin, Martin, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Berland, Kristian, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Hyldgaard, Per, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
visa fler...
-
- Larsson, Anders, 1957 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Andersson, Thorvald, 1946 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
visa färre...
-
(creator_code:org_t)
- 2011-05-09
- 2011
- Engelska.
-
Ingår i: Physica Status Solidi (C) Current Topics in Solid State Physics. - : Wiley. - 1610-1642 .- 1862-6351. ; 8:7-8, s. 2357-2359
- Relaterad länk:
-
https://research.cha...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- waveguide
- near infrared
- quantum cascade laser
- nitrides
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas