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Fig. 6 | Nanoscale Research Letters

Fig. 6

From: Batch Fabrication of Broadband Metallic Planar Microlenses and Their Arrays Combining Nanosphere Self-Assembly with Conventional Photolithography

Fig. 6

a, b Simulation results of the electric-field patterns of the 4-μm microlens when P = 400 nm at the working wavelength of λ = 581 nm (transmission dip) and 681 nm (peak), respectively. c Simulated total transmittance spectra for the microlenses corresponding to the lattice spacings P = 400, 530, and 600 nm in the frequency range of 400~800 nm, and the inset shows the model of a 4-μm microlens. The transmission dips and peak are flagged by circles and triangle, respectively

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