Ryger, I.
, White, M.
, Tomlin, N.
, Lehman, J.
, Lobotka, P.
and Harber, D.
(2016),
Low noise resistive bolometer read out for wideband room temperature infrared detector, 41st International Conference on Infrared, Millimeter and Terahertz Waves, Coppenhagen, -1, [online], https://doi.org/10.1109/IRMMW-THz.2016.7758947
(Accessed April 23, 2024)
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Low noise resistive bolometer read out for wideband room temperature infrared detector
Published
Author(s)
, , , , Peter Lobotka, Dave Harber
Abstract
The absolute electrical substitution radiometer is the way to ensure highly accurate and stable measurement of optical power in wide range of optical wavelength. Its sensitivity is mainly determined by temperature stability of the equithermal bath and electrical noise of temperature readout. In this article we investigate the noise background of different preamplifiers in combination with different types of temperature sensors for this purpose. The 1/f noise of temperature sensors and Johnson thermal noise were chosen as a figure of merit for sensors and preamplifiers, respectively. The results from our measurements are discussed.Proceedings Title
41st International Conference on Infrared, Millimeter and Terahertz Waves
Conference Dates
September 25-30, 2016
Conference Location
Coppenhagen
Pub Type
Conferences
Download Paper
Keywords
Wheastone Bridge, Preamplifier, JFET, Bipolar transistor, 1/f noise
Citation
Created September 25, 2016, Updated November 10, 2018