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Femto-second electron transit time characterization in GaN/AlGaN quantum cascade detector at 1.5 micron
- Source :
- Applied Physics Letters. 99:202111
- Publication Year :
- 2011
- Publisher :
- AIP Publishing, 2011.
-
Abstract
- The ultra fast carrier dynamic in GaN/AlGaN quantum cascade detector was investigated using a time-resolved bias-lead monitoring technique. It is demonstrated that the intrinsic speed limitation, governed by the carrier transit time, is smaller than 1 ps, corresponding to a frequency cut off above 200 GHz.
- Subjects :
- 010302 applied physics
Physics
Physics and Astronomy (miscellaneous)
business.industry
Detector
Bolometer
Wide-bandgap semiconductor
02 engineering and technology
Electron
021001 nanoscience & nanotechnology
01 natural sciences
Characterization (materials science)
law.invention
Condensed Matter::Materials Science
Cascade
law
0103 physical sciences
Femtosecond
Optoelectronics
0210 nano-technology
business
Quantum
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 99
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........e401a0ffae439efb4d4b87217558cb35