46 citations · 134 across the 5 of their papers we have counts for
5 papers
Creation of New Lasing Modes with Spatially Nonuniform Gain
Jonathan Andreasen, Hui Cao
We report on the creation of new lasing modes with spatially nonuniform distributions of optical gain in a one-dimensional random structure. It is demonstrated numerically that eve…
Marginally Unstable Periodic Orbits in Semiclassical Mushroom Billiards
Jonathan Andreasen, Hui Cao, Jan Wiersig +1
Optical mushroom shaped billiards offer a unique opportunity to isolate and study non-dispersive, marginally unstable periodic orbits. Here we show that the openness of the cavity…
Finite-difference time-domain formulation of stochastic noise in macroscopic atomic systems
Jonathan Andreasen, Hui Cao
A numerical model based on the finite-difference time-domain method is developed to simulate fluctuations which accompany the dephasing of atomic polarization and the decay of exci…
FDTD Simulation of Thermal Noise in Open Cavities
Jonathan Andreasen, Hui Cao, Allen Taflove +2
A numerical model based on the finite-difference time-domain (FDTD) method is developed to simulate thermal noise in open cavities owing to output coupling. The absorbing boundary…
Effect of local pumping on random laser modes
X. Wu, J. Andreasen, H. Cao +1
We have developed a numerical method based on the transfer matrix to calculate the quasimodes and lasing modes in one-dimensional random systems. Depending on the relative magnitud…