MTF measurements of a type-II superlattice infrared focal plane array sealed in a cryocooler
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...
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| Veröffentlicht in: | Optics express 2018-04, Vol.26 (8), p.11034-11045 |
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| container_title | Optics express |
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| creator | Nghiem, Jean Jaeck, Julien Primot, Jerome Coudrain, Christophe Derelle, Sophie Huard, Edouard Caes, Marcel Bernhardt, Sylvie Haidar, Riad Christol, Philippe Ribet-Mohamed, Isabelle |
| description | 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. |
| doi_str_mv | 10.1364/OE.26.011034 |
| format | Article |
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| subjects | Engineering Sciences Micro and nanotechnologies Microelectronics Optics Physics |
| title | MTF measurements of a type-II superlattice infrared focal plane array sealed in a cryocooler |
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