Hung Le Quang, Qi-Chang He, Nicolas Auffray, Classification of first strain-gradient elasticity tensors by symmetry planes, Proceedings: Mathematical, Physical and Engineering Sciences, Vol. 477, No.

NASA has tested some of the strangest aircraft designs in history, but few are as bizarre as the oblique wing aircraft—an experimental plane with one forward-swept wing and one backward-swept wing.

By breaking the in-plane inversion symmetry, the polarization states of PhC can cover entire Poincaré sphere's two poles. b, Illustration of photoluminescence of WS2 monolayer on the PhC slab ...