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. 2023 Jun 26;23(13):5920. doi: 10.3390/s23135920

Figure 6.

Figure 6

The optical phased array consists of 16 parallel grating couplers spaced 2 μm apart. θ: outcoupling angle along the waveguide axis. ψ: outcoupling angle perpendicular to the waveguide axis. The inset shows the far-field image [34].