A 256�256 pixel InSb FPA for SIRTF and other astronomical applications

Autor:	M. L. Louderback, J. D. Biggs, M. A. Blessinger
Rok vydání:	1994
Předmět:	Physics business.industry Indium antimonide Infrared telescope Detector Astronomy and Astrophysics Multiplexer Noise (electronics) Particle detector Photodiode law.invention chemistry.chemical_compound Optics chemistry Space and Planetary Science law business Dark current
Zdroj:	Experimental Astronomy. 3:117-118
ISSN:	1572-9508 0922-6435
DOI:	10.1007/bf00430127
Popis:	As part of the NASA Space Infrared telescope Facility (SIRTF), a low noise multiplexer has been developed. The hybridization of this multiplexer to a high indium antimonide (InSb) photodiode array has resulted in a MWIR detector of outstanding performance. The multiplexer is made of a 256×256 array of source follower amplifiers on a 30 μm square pitch. Random access binary decoders are used to access each pixel of the array, allowing any read-out scheme to be implemented. Dark current has been measured at temperatures ranging from 4K to 77K. Generation recombination currents dominate above 45K. With 100mV of reverse bias applied, less than 3×10-17 A is typical below 50K with 8×10-19 A (5 e-/s) at 4K. Under the same conditions 0.25 pA was measured at 77K. Read noise has been measured as low as 186 e- using non-correlated techniques. Detector QE is 50 to 80 % through the entire 1 to 5 μm band.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0db0bc61354168608808e722b6c26893 https://doi.org/10.1007/bf00430127 Zobrazit plný text záznamu Full text from SpringerLink