Figure 5
From: Self organization of exotic oil-in-oil phases driven by tunable electrohydrodynamics
Droplet array.
a, At 70 Hz, each droplet in the array is a section of an oblate spheroid. The top inset shows the droplet acting as a lens for the bottom layer of droplets, see text. b, At 1 KHz, each droplet is a section of a prolate spheroid. The FFTs in the bottom insets of (a, b) display weak hexagonal ordering. The field is perpendicular to the plane of the page.
