Toward a flexible electronic flying carpet
Piezoelectrically deformed substrates provide traveling wave-induced aerodynamic propulsive forces for a flat plastic sheet.
New method for recording digital holograms
Fourier incoherent single-channel holography can record spatially incoherent digital holograms, avoiding the twin-image problem. This could enable the development of instruments such as holographic telescopes and video cameras.
Metalens with convex and concave functionality
A new, dual-polarity lens made of metamaterials offers extra flexibility for focusing and imaging devices and may find application in integrated nano-optoelectronics.
Faster production of high-quality telescope mirrors
Novel polishing techniques on pre-cut segments may speed the manufacture of aspheric mirrors for large telescopes.
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