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MTF measurements of a type-II superlattice infrared focal plane array sealed in a cryocooler
- Source :
- Optics Express, Optics Express, Optical Society of America-OSA Publishing, 2018, 26 (8), pp.11034-11045. ⟨10.1364/OE.26.011034⟩
- Publication Year :
- 2018
- Publisher :
- HAL CCSD, 2018.
-
Abstract
- International audience; In operational electro-optical systems, infrared focal plane arrays (IR FPA) are integrated in cryocoolers which induce vibrations that may strongly affect their modulation transfer function (MTF). In this paper, we present the MTF measurement of an IR FPA sealed in its cryocooler. The method we use to measure the MTF decorrelates operational constraints and the technological limitations of the IR FPA. The bench is based on the diffraction properties of a continuously self imaging grating (CSIG). The 26 µm pixel size extracted from the MTF measurement is in good agreement with the expected value.
- Subjects :
- Diffraction
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Materials science
Pixel
business.industry
Infrared
Superlattice
02 engineering and technology
Grating
Cryocooler
021001 nanoscience & nanotechnology
01 natural sciences
Atomic and Molecular Physics, and Optics
010309 optics
OCIS: 040.0040, 040.1240, 040.3060, 110.4100, 070.6760
Optics
Optical transfer function
0103 physical sciences
Spatial frequency
[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
0210 nano-technology
business
Subjects
Details
- Language :
- English
- ISSN :
- 10944087
- Database :
- OpenAIRE
- Journal :
- Optics Express, Optics Express, Optical Society of America-OSA Publishing, 2018, 26 (8), pp.11034-11045. ⟨10.1364/OE.26.011034⟩
- Accession number :
- edsair.doi.dedup.....3acbd965434f0a37f9c76bd972d81469