Fig. 6. Angle-resolved measurements of the diffraction gratings fabricated via holographic DLIP. (a) The spectroscopy system contains a white light beam that passes through a 2D metal film sample on a motorized stage. Transmission spectra of 25 nm thick elongated-rectangular array (2.4 μm × 1.8 μm) (b) x axis and (c) y axis. Transmission spectra of square array (640 nm × 640 nm) (d) x axis and (e) y axis.
