I realized the high-power drive type of emission beam generated at the surface by using the excitation of the guided mode in a TiO ₂ slanted nanograting layer. In the TiO ₂ layer, the beam is waveguided along the short axis direction of the grating at a specific injection angle Θ. On the surface of the layer, a beam consisting of leakage generated during the waveguide is emitted. The emitted beam would have a high optical intensity compared with the general emission. Furthermore, it would generate an afterimage for the waveguide direction. In this work, I performed angle-resolved measurements to obtain two effects, namely intensity maintain and after(-driving) imaging. Subsequently, I identified an appropriate resonance condition for the above radiation on the 1D waveguide on the surface. Thereby, the resonance peak for the waveguide with Θ _FWHM =10.0° at Θ = 10° was verified in the measurement. This grating sample is likely to be effective as a novel coupler on a binocular Virtual Reality – Head Mounted Display (VR-HMD).