Fig. 5From: A Polarization-Dependent Normal Incident Quantum Cascade Detector Enhanced Via Metamaterial Resonators a Photocurrent responsivity of the CSRRs coupled device (red) together with that of 45° edge facet coupling device (blue). Inset: responsivity ratio of the CSRR device to 45° edge facet coupling device. b The z-dependences of the total amplitude for the E x polarization at 10.7 μm (black) and E y polarization at 10.3 μm (red)Back to article page