  We demonstrate reconfigurable phase-only computer-generated metasurface
holograms with one, two, or three image planes operating in the visible regime
on a stretchable polydimethylsiloxane substrate. Stretching the substrate
enlarges the hologram image and changes the location of the image plane. Upon
stretching, these devices can switch the displayed holographic image between
multiple distinct images. This work opens up the possibilities for stretchable
metasurface holograms as flat devices for dynamically reconfigurable optical
communication and display. It also confirms that metasurfaces on stretchable
substrates can serve as platform for a variety of reconfigurable optical
devices.
