Figure 4
From: IR sensitivity enhancement of CMOS Image Sensor with diffractive light trapping pixels
(a) FDTD simulation results of Samples A and B shown in Fig. 3. Dashed RGB lines show the normalized amount of the light absorptions of RGB pixels of Sample A. Here the amount of peak absorption of green pixel is assumed to be 1.0 for normalization. Solid RGB lines show the amount of light absorption of RGB pixels of sample B. (b) Simulation results of Sample A with dashed lines and sample C with solid lines. (c) Figure of Merit, the normalized amount of absorption by sample A. The red diamond is the ratio between sample B and sample A, and the blue square is the ratio between sample C and sample A.
