Function:
The spectral response measurement system allows measurement of the
spectral response. By making this measurement, the cut-off wavelength
of the infrared detectors can be determined. The system
is being augmented to allow measurement of the
quantum efficiency of the infrared detectors.
Specifications:
This system consists of a low temperature attachment (a J-T cooler with
an optical window) to a Fourier Transform Infrared (FTIR)
spectrometer.
Fourier Transform Infrared (FTIR) spectrometer
An FTIR (Fourier Transform Infrared) spectrometer is used to determine the
infrared absorption, the
index of refraction and the thickness of the material.
A personal
computer is being used currently to control and collect data from this
unit with outstanding efficiency.
Contact:
Dr. Renganathan Ashokan,
