Fig. 5: Structural characterization and fluorescence emission of the fabricated dual-layer encryption waveguide. | Nature Communications

Fig. 5: Structural characterization and fluorescence emission of the fabricated dual-layer encryption waveguide.

From: Dual-layer optical encryption fluorescent polymer waveguide chip based on optical pulse-code modulation technique

Fig. 5: Structural characterization and fluorescence emission of the fabricated dual-layer encryption waveguide.The alternative text for this image may have been generated using AI.

a The microscope captured image of the whole waveguide structure; (b) and (c) are SEM images of the waveguide cut-surface; (d) and (e) are fluorescence emission images of the dual-layer waveguide chip under a 365 nm point source.

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