Fig. 1: Design and simulation of a mirror in single-crystal diamond.
a Graphical depiction of a diamond mirror with the “golf tee”-shaped columns arranged in a hexagonal lattice. b Typical multilayered optical coating deposited onto a substrate. c Schematic of the “golf tee” columns that comprise the diamond mirror, with all relevant dimensions labeled: angle α, radii rdisc, rmin, rsupport, and total height h. The shaded yellow region labeled n1 is of lowest refractive index (air), the red region n2 contains the top portion of the column that features optical resonances and is of highest refractive index, while the yellow region n3 is of lower refractive index and supports the top portion of the column. d Diamond mirror reflection spectrum at normal incidence for varying design angles α, with rdisc = 250 nm, rmin = 50 nm, rsupport = 250 nm, pitch 1.1 μm, and h = 3 μm. Colors indicate reflectivity. e Standing-wave pattern illustrating the reflected wavefront from a diamond mirror at a wavelength of 1064 nm. Mode is confined in the top portion of the columns due to lattice resonance. Colors indicate the electric field amplitude. Photo credit for panels (a) and (b): P. Latawiec, Harvard.
