We present results showing the formation and evolution of a photonic crystal cavity during writing by selective optical exposure in a photosensitive chalcogenide photonic crystal. Q-factors of up to 125,000 were obtained in these cavities.
It has been a long-standing challenge to produce air-stable few- or monolayer samples of phosphorene because thin phosphorene films degrade rapidly in ambient conditions. Here we demonstrate a new highly controllable method for fabricating high quality, air-stable phosphorene films with a designated number of layers ranging from a few down to monolayer. Our… (More)
We have produced a stable 10mW, mid-infrared supercontinuum spanning the full functional group band from 1750nm to >7000nm spanning using a 1cm long chalcogenide waveguide pumped by a 20MHz train of 320fs pulses at 4μm.
Three-photon absorption (3PA) has been observed as the dominant mechanism for nonlinear absorption in wide-bandgap hydrogenated amorphous silicon (a-Si:H) at 1.55μm.
We report dispersion-engineered nanowire waveguides fabricated in Ge<inf>11.5</inf>As<inf>24</inf>Se<inf>54.5</inf> chalcogenide glass with a nonlinear parameter γ>150,000W<sup>−1</sup>km<sup>−1</sup>.
Accurate integration of flow simulation and seismic modeling is one of the cornerstones of reliable time-lapse (4D) seismic monitoring. However, the question which scales flow simulations need to resolve to accurately capture reservoir changes during production and whether these scales are resolvable in seismic data is an open one. The answer impacts… (More)