Abstract
A two stack two color quantum well infrared photodetector (QWIP) for simultaneously detection of LWIR and near infrared (NIR) radiation is demonstrated. The LWIR sensor is based on a regular GaAs/AlGaAs QWIP, while the NIR sensor is based on a strained InGaAs/GaAs quantum wells structure. Optical and electrical measurements of the NIR detector and the inclusive device are presented and discussed.
Original language | English |
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Pages (from-to) | 391-396 |
Number of pages | 6 |
Journal | Infrared Physics and Technology |
Volume | 42 |
Issue number | 3-5 |
DOIs | |
State | Published - Jun 2001 |
Externally published | Yes |
Keywords
- LWIR
- Multispectral
- NIR
- QWIP
- See spot