Figure 1| Design and fabrication of the deep-nanohole-clad waveguide. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 1| Design and fabrication of the deep-nanohole-clad waveguide.

Caption

Figure 1 | Design and fabrication of the deep-nanohole-clad waveguide. (a) Schematic illustration of the fabrication process combining spherical-aberration-enhanced femtosecond laser modification and selective wet etching. The inset shows the simulated optical intensity distribution of the elongated focal volume. (b) Macroscopic photographs of the fabricated centimeter-scale sample exhibiting structural color. All panels share the same scale (Dimension: 5 × 5 mm²). (c) Phase-delay map indicating the high uniformity of the periodic structures (Scale bar: 3 μm).

Credit

Lijing Zhong et al.

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