Téléchargez le livre : Development of 15 Micron Cutoff Wavelength HgCdTe Detector Arrays for Astronomy

Development of 15 Micron Cutoff Wavelength HgCdTe Detector Arrays for Astronomy

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Éditeur :

Springer


Collection :

Springer Theses

Paru le : 2020-09-17

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Description

This thesis describes advances in the understanding of HgCdTe detectors. While long wave (15 µm) infrared detectors HgCdTe detectors have been developed for military use under high background irradiance, these arrays had not previously been developed for astronomical use where the background irradiance is a billion times smaller. The main pitfall in developing such arrays for astronomy is the pixel dark current which plagues long wave HgCdTe. The author details work on the success of shorter wavelength development at Teledyne Imaging Sensors, carefully modeling the dark current–reverse bias voltage curves of their 10 µm devices at a temperature of 30K, as well as the dark current–temperature curves at several reverse biases, including 250 mV. By projecting first to 13 and then 15 µm HgCdTe growth, values of fundamental properties of the material that would minimize tunneling dark currents were determined through careful modeling of the dark current-reverse bias voltage curves, as well as the dark current-temperature curves. This analysis was borne out in the 13 µm parts produced by Teledyne, and then further honed to produce the necessary parameters for the 15 µm growth. The resulting 13 µm arrays are being considered by a number of ground-based astronomy research groups.
Pages
121 pages
Collection
Springer Theses
Parution
2020-09-17
Marque
Springer
EAN papier
9783030542405
EAN PDF
9783030542412
Informations sur l'ebook
Nombre pages copiables
1
Nombre pages imprimables
12
Taille du fichier
4864 Ko
Prix
94,94 €
EAN EPUB
9783030542412
Informations sur l'ebook
Nombre pages copiables
1
Nombre pages imprimables
12
Taille du fichier
21934 Ko
Prix
94,94 €

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