671 citations · 1.9k across the 10 of their papers we have counts for
10 papers
The suppression of Finite Size Effect within a Few Lattices
Tao Liu, Kai Bai, Yicheng Zhang +4
Boundary modes localized on the boundaries of a finite-size lattice experience a finite size effect (FSE) that could result in unwanted couplings, crosstalks and formation of gaps…
Dirac Cones at k=0 in Phononic Crystals
Fengming Liu, Yun Lai, Xueqin Huang +1
We show that two-dimensional phononic crystals exhibit Dirac cone dispersion at k=0 by exploiting dipole and quadrupole accidental degeneracy. While the equi-frequency surface of D…
Elastic metamaterials with simultaneously negative effective shear modulus and mass density
Ying Wu, Yun Lai, Zhao-Qing Zhang
We propose a type of elastic metamaterial comprising fluid-solid composite inclusions which can possess negative shear modulus and negative mass density over a large frequency regi…
Metamaterial slab as a lens, a cloak or something in between
Jian Wen Dong, Hui Huo Zheng, Yun Lai +2
We show that a metamaterial slab with arbitrary values of epsilon and mu behaves as a cloak at a finite frequency for a small object located sufficiently close to it due to the sup…
Exterior optical cloaking and illusions by using active sources: a boundary element perspective
H. H. Zheng, J. J. Xiao, Y. Lai +1
Recently, it was demonstrated that active sources can be used to cloak any objects that lie outside the cloaking devices [Phys. Rev. Lett. \textbf{103}, 073901 (2009)]. Here, we pr…
Illusion optics: The optical transformation of an object into another object
Yun Lai, Jack Ng, HuanYang Chen +4
We propose to use transformation optics to generate a general illusion such that an arbitrary object appears to be like some other object of our choice. This is achieved by using a…