Fig. 5 | Nature Communications

Fig. 5

From: Programmable terahertz chip-scale sensing interface with direct digital reconfiguration at sub-wavelength scales

Fig. 5

THz response reconfigurability and its trade-off with the location and number of reconfiguration sites. a Simulated optimized gain with varying locations of the 16 detectors and its effect on peak responsivity and frequency range of operation. b Simulated variations of bandwidth with location sets of the 16 detectors. The figure demonstrates that more than one solution set can exist to achieve a similar frequency range of operation. c, d Simulated optimized gain with varying locations of the 16 detectors for different angles of incidence and polarization at 0.4 THz. e Simulated gain variations with the number of detectors for various incidence fields. f For the final design, the figure shows the instantaneous frequency response as the sensor is optimized for various peak frequencies. The optimal reconfigurable sensor response of the chip follows the peak of these individual frequency response curves

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