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THz Characterization Setup
The IRXCAM-INO160THz camera module has been tested on a THz characterization
setup (presented in Fig. 3). The THz beam is emitted from a liquid-nitrogen cooled
pulsed quantum cascade laser (QCL) from Laser Components GmbH emitting at a
wavelength of 100
m. The camera module is placed at about 30 cm in front of the THz
QCL source, while a custom silicon float zone THz objective is placed in front of the
QCL for focusing the laser onto the detector. The main characteristics of the custom THz
objective and the THz source are presented in Table 1. The QCL beam has a large
divergence of about 22° involving the use of an optical objective or series of lenses for
collecting and focusing the emitted radiation onto the INO160THz FPA sensor. Note that
the custom objective is usually utilized in front of the camera for imaging applications.
Fig. 3 THz Characterization Setup
