- Tytuł:
- Grating-free high-x InP/InxGa1-xAs mid-wavelength infrared QWIP focal plane array
- Autorzy:
-
Besikci, Cengiz
Balcı, Saadettin V.
Tanış, Onur
Güngör, Oğuz O.
Arpaguş, Esra S. - Powiązania:
- https://bibliotekanauki.pl/articles/2204209.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
- Tematy:
-
infrared imaging
quantum well
infrared photodetector - Opis:
- The authors report the characteristics of a diffraction-grating-free mid-wavelength infrared InP/In₀.₈₅Ga₀.₁₅As quantum well infrared photodetector focal plane array with a 640 × 512 format and a 15 µm pitch. Combination of a normal incident radiation sensing ability of the high-x InxGa1-xAs quantum wells with a large gain property of the InP barriers led to a diffraction-grating-free quantum well infrared photodetector focal plane array with characteristics displaying great promise to keep the status of the quantum well infrared photodetector as a robust member of the new generation thermal imaging sensor family. The focal plane array exhibited excellent uniformity with noise equivalent temperature difference nonuniformity as low as 10% and a mean noise equivalent temperature difference below 20 mK with f/2 optics at 78 K in the absence of grating. Elimination of the diffraction-grating and large enough conversion efficiency (as high as ~70% at a -3.5 V bias voltage) abolish the bottlenecks of the quantum well infrared photodetector technology for the new generation very small-pitch focal plane arrays.
- Źródło:
-
Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144563
1230-3402 - Pojawia się w:
- Opto-Electronics Review
- Dostawca treści:
- Biblioteka Nauki
Artykuł