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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.

-- KonstantinLekomtsev1 - 04 Jun 2018

Physics WebpagesRHUL WebpagesCampus Connect • Royal Holloway, University of London, Egham, Surrey TW20 0EX; Tel/Fax +44 (0)1784 434455/437520

Topic revision: r1 - 04 Jun 2018 - KonstantinLekomtsev

 
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