Dual Band Kinetic Inductance Bolometers for Submillimeter-wave Imaging
Experimental and Theoretical Optical Response
S.O. Dabironezare (TU Delft - Tera-Hertz Sensing)
J. Hassel (VTT Technical Research Center of Finland)
E. Gandini (TU Delft - Tera-Hertz Sensing)
L. Grönberg (VTT Technical Research Center of Finland)
H. Sipola (VTT Technical Research Center of Finland)
V. Vesterinen (VTT Technical Research Center of Finland)
N. Llombart (TU Delft - Tera-Hertz Sensing)
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Abstract
In this contribution, a focal plane array (FPA) at submillimeter wavelengths is presented for security applications. The detectors are based on kinetic inductance bolometers. Two frequency selective absorber (FSA) sets were designed to implement a security imager. The effective pattern of the imager coupled to a black body point source over a wide frequency band (1:6) was demonstrated experimentally with excellent agreement to the one estimated by using a Fourier optics based technique.