Figure 3
From: A Wide Dynamic Range Polarization Sensing Long Wave Infrared Detector
The structure and dimensions of the polarization sensing detector. (a) The top view of the two orthogonal slot antennas each coupled with two microbolometers. The two antennas provide polarization sensing and the two bolometers are placed to maintain the symmetry of the structure and provide the path for dc and IR currents. The dimensions of different elements are also shown. (b) The cross section view of the detector. The device is designed on a silicon dioxide dielectric and an aluminum ground plane. All dimensions are in micrometers. (c) Simulated radiation patterns of the antenna for the co-pol and cross-pol components. The absorbed power in the co-polarized state is reduced as the angle of incidence increases. On the other hand, the absorbed power of cross-polarized state increases as the angle of incidence increases and reaches its peak at θ = 30°.
