Fig. 4: Laser exfoliated nanometric flat diffractive prints for binocular stereoscopic images.
From: Ultra-sensitive nanometric flat laser prints for binocular stereoscopic image
a The optical configuration for binocular stereoscopic images. The inset shows optical microscopic images of laser exfoliated nanometric flat diffractive pixels made of two sets of grating structures. b Design principle of stereoscopic views by diffracting light from binocular positions (θL and θR) at oblique incident angles (θ0). The dashed circles with radius k0 = 2π/λ represent the wave vector of light. c, d are different images acquired by the left and right eyes, which were false-color images of the human face taken from different angles, respectively. e, f Enlarged views of optical microscopic image and corresponding SEM image in the white dotted boxes in (c, d).
