33 citations · 35 across the 3 of their papers we have counts for
7 papers
Unified treatment for classical waves in two-dimensional media
Pi-Gang Luan, Tzong-Jer Yang
A unified treatment for the propagation of classical waves in inhhomogeneous media is proposed. We deal with four kinds of waves, they are the acoustic wave in fluid, the elastic s…
Analysis on the imaging properties of a left-handed material slab
Pi-Gang Luan, Hung-Da Chien, Chii-Chang Chen +1
We investigate in this paper the imaging properties of an absorptive left-handed material (LHM) slab. For a line source, a geometric explanation to the reason of the thickness limi…
Lewis-Riesenfeld approach to the solutions of Schrodinger equation in the presence of the presence of a time-dependent linear potential
Pi-Gang Luan, Chi-Shung Tang
We reexamine the general solution of a Schrödinger equation in the presence of a time-dependent linear potential in configuration space based on the Lewis-Riesenfeld framework. For…
Reflection of matter waves by a moving wall
Pi-Gang Luan, Yee-Mou Kao
Reflection of a normal incident matter wave by a perfectly reflecting wall moving with a constant velocity is investigated. A surprising phenomenon is found-that if the the wall mo…
Two dimensional photonic crystals
Pi-Gang Luan, Zhen Ye
The topology, the symmetry involving the shape of dielectric cylinders, and the lattice structure are among the most important ingredients in the architecture of photonic crystals.…
Acoustic radiation in randomly-layered structures
Zhen Ye, Pi-Gang Luan
Radiation from acoustic sources located inside randomly-layered structures is studied using the transfer matrix method. It is shown that in contrast to the periodically layered cas…