1. "Thermal noise in InGaAs photodetectors is a big issue, so we pay thousands of ... I need 30 – 35 seconds for each sample, will FT-NIR suit? ... with upper limit of 1900 nm, you see that they do not need cooling system and as ... The 2200nm cut off detectors are 10x more noisy than the 1700nmtype, and the ..."
NIR Discussion Forum: Detectors - IM Publications
www.impublications.com › ... › Bruce Campbell's List › Calibration transfer
Feb 17, 2011 - 42 posts
2. "While other sensor technologies are equally capable of covering all or parts of the NIR spectrum covered by standard InGaAs FPAs (900 to 1700 nm), most other technologies have some drawback that make then less attractive. InSb can be used to cover the same range with a high performance sensor but requires cryogenic cooling, resulting in a higher cost, and lower reliability camera due to the sterling cooler. Short wavelength HgCdTe, like InGaAs does not require cryogenic cooling, but is relatively more expensive due to limited commercial availability of he detector material."
From Extended short wavelength spectral response
from InGaAs focal plane arrays
Theodore R. Hoelter, Jeffrey B. Barton
Indigo Systems Corporation, 50 Castilian Drive, Goleta, CA USA 93117
Infrared Technology and Applications XXIX, Bjørn F. Andresen, Gabor F. Fulop, Editors,
Proceedings of SPIE Vol. 5074 (2003) © 2003 SPIE · 0277-786X/03/$15.00
3. "The IK1112 camera is a highly sensitive infrared camera (SWIR, NIR) with 320x256 pixel and a framrate of 110fps. The sensitivity interval reaches from 900nm to 1700nm. The sensor doesn't need active cooling and thus powered by USB bus (no external power supply needed)."
http://www.ehd.de/products/InGaAscameras/InGaAs_SWIR_Infrared_Cameras.html
4. "Unlike other IR detectors, InGaAs detectors do not
require deep cooling. However, moderate thermoelectric
cooling reduces the detector noise and
improves the image quality"
http://83.169.23.21/files/downloads/xenics/eu/NIR_SWIR_FPA_Cameras_eu.pdf
