Two spectral response experiments were performed:
- one by using a narrowband photomixer (efficiency drops above 110GHz),
- and the other by using a 150Watt Hg arc lamp in a Martin-Puplett interferometer (MP-FTIR). The higher frequencies were attenuated by the two polymer lenses that we used in the setup.
- FTIR Measurement was repeated using a Golay cell as a detector, and the spectrum extended to ~2.25THz before hitting the noise floor (the Golay cell has a flat response curve, therefore more sensitive at higher frequencies).
Courtesy of RAL Millimetre-Wave Technology Group.
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KonstantinLekomtsev1 - 04 Jun 2018