Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Rickard Marcks von Würtemberg"'
Publikováno v:
Infrared Physics & Technology. 84:21-27
In this paper, we present a range of modeling tools that are used in the design and performance evaluation of type-II superlattice detectors. Among these is an optical and photo carrier transport model for the spectral total external QE, which takes
Autor:
Henk Martijn, Hedda Malm, Carl Asplund, Rickard Marcks von Würtemberg, Dan Lantz, Anders Gamfeldt
Publikováno v:
Infrared Physics & Technology. 70:34-39
Recent improvements in material quality, structure design and processing have made type-II superlattice a competing high end detector technology. This has also made it an attractive material of choice to meet the industrial need of high end gas detec
Autor:
Eric Costard, Carl Asplund, Anders Gamfeldt, Linda Höglund, Hithesh K. Gatty, Rickard Marcks von Würtemberg
Publikováno v:
SPIE Proceedings.
Midwave-midwave dual color detection has been successfully demonstrated by using pixel filters fabricated on top of InAs/GaSb focal plane arrays (FPAs). The pixel filters used in these FPAs were designed to transmit infrared radiation in the 3.5 - 4.
Autor:
Elena Plis, Dan Lantz, Nutan Gautam, Hedda Malm, Carl Asplund, Sanjay Krishna, Rickard Marcks von Würtemberg, Henk Martijn
Publikováno v:
Infrared Physics & Technology. 59:22-27
A heterojunction T2SL barrier detector which effectively blocks majority carrier leakage over the pn-junction was designed and fabricated for the mid-wave infrared (MWIR) atmospheric transmission window. The layers in the barrier region comprised AlS
Autor:
Carl Asplund, Yuxin Song, Amir Karim, Xiang Lü, Rickard Marcks von Würtemberg, Hedda Malm, Jun Shao, Shumin Wang
Publikováno v:
Crystal Structure Theory and Applications. :46-56
InAs/GaSb type-II superlattce (T2SL) photodetector structures at the MWIR regime were grown by molecular beam epitaxy. The growth temperature and group-V soaking times were optimized with respect to interface and transport quality. Novel strain compe
Autor:
Carl Asplund, Sanjay Krishna, Rickard Marcks von Würtemberg, Amir Karim, Hedda Malm, Elena Plis, Jan Y. Andersson
Publikováno v:
physica status solidi c. 9:1690-1692
We report on the electrical and material characterization of InAs/GaSb type-II superlattice (T2SL) mid-wave infrared (MWIR) photodiodes with different passivation schemes on the mesa-sidewalls with significant differences in the resulting low tempera
Publikováno v:
SPIE Proceedings.
A VGA format type-II superlattice focal plane array (FPA) for the mid-wave infrared (MWIR) atmospheric window has been designed, manufactured and characterized. The detector material is based on a heterojunction structure with a barrier that effectiv
Autor:
Amir Karim, Hedda Malm, Oscar Gustafsson, Sanjay Krishna, Henk Martijn, Rickard Marcks von Würtemberg, Carl Asplund, Elena Plis
Publikováno v:
SPIE Proceedings.
A mid wave infrared type-II superlattice focal plane array with 320x256 pixels, 30 μm pitch and 90 % fill factor was fabricated in house, using a conventional homojunction p-i-n photodiode design and the ISC9705 readout circuit. High-quality imaging
Autor:
E. Odling, Rickard Marcks von Würtemberg, J. Malmquist, Jesper Berggren, Petrus Sundgren, V. Oscarsson, Mattias Hammar, M. Ghisoni
Publikováno v:
SPIE Proceedings.
We describe the development of long-wavelength InGaAs/GaAs vertical-cavity surface emitting lasers (VCSELs). Using highly strained double-quantum wells (DQWs) in combination with negative gain-cavity detuning we have been able to realise such VCSELs
Autor:
M. Chacinski, Rickard Marcks von Würtemberg, Jesper Berggren, Mattias Hammar, Sebastian Mogg, Petrus Sundgren, Richard Schatz, Olle Kjebon
Publikováno v:
Applied Physics Letters. 86:211109
The dynamic performance of InGaAs/GaAs 1.27 m m single-mode vertical cavity surface emitting lasers (VCSELs) is presented. In order to reach such a long wavelength, the devices utilize highl ...