We present the design, fabrication, and full characterisation (sensitivity, beam pattern, and frequency response) of a background limited broadband antenna coupled kinetic inductance detector covering the frequency range from 1.4 to 2.8 THz. This device shows photon noise limited performance with a noise equivalent power of 2.5 × 10-19W/Hz1/2 at 1.55 THz and can be easily scaled to a kilo-pixel array. The measured optical efficiency, beam pattern, and antenna frequency response match very well the simulations.
CITATION STYLE
Bueno, J., Yurduseven, O., Yates, S. J. C., Llombart, N., Murugesan, V., Thoen, D. J., … Baselmans, J. J. A. (2017). Full characterisation of a background limited antenna coupled KID over an octave of bandwidth for THz radiation. Applied Physics Letters, 110(23). https://doi.org/10.1063/1.4985060
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