Oblique Airy Wavepackets In Bidispersive Optical Media

We show that a new class of skewed, non-spreading Airy wavepackets is possible in optical bidispersive systems. Their obliquity is found to have a profound effect on their spatiotemporal acceleration dynamics. Pertinent examples are provided. © 2010 Optical Society of America

Oblique Airy Wavepackets In Bidispersive Optical Media

We show that a new class of skewed, non-spreading Airy wavepackets is possible in optical bidispersive systems. Their obliquity is found to have a profound effect on their spatiotemporal acceleration dynamics. Pertinent examples are provided. © 2010 Optical Society of America

Oblique Airy Wave Packets In Bidispersive Optical Media

Using hyperbolic rotations, we show that a new class of skewed, nonspreading, accelerating Airy wave packets is possible in optical bidispersive systems. Their obliquity factor is found to have a profound effect on their spatiotemporal acceleration dynamics. Pertinent examples are provided. © 2010 Optical Society of America

Diffractive optical elements utilized for efficiency enhancement of photovoltaic modules

Common solar cells used in photovoltaic modules feature metallic contacts which partially block the sunlight from reaching the semiconductor layer and reduce the overall efficiency of the modules. Diffractive optical elements were generated in the bulk glass of a photovoltaic module by ultrafast laser irradiation to direct light away from the contacts. Calculations of the planar electromagnetic wave diffraction and propagation were performed using the rigorous coupled wave analysis technique providing quantitative estimations for the potential efficiency enhancement of photovoltaic modules

Evolution of Recrystallization Texture in AISI300 Series Austenitic Stainless Steels After Cold Rolling to Large Strain

The present paper deals with the evolution of texture in austenitic stainless steels during annealing after 95% cold rolling. After 95% cold rolling, the texture is mainly of the brass type {110} along with a scatter towards the S orientation {123} and Goss orientation {011} . Weak evidence of Cu component is observed at this high deformation level. During annealing, recovery is observed before any detectable recrystallization. After recrystallization, the overall texture intensity was weak; however, there are some discernible texture components. There was no existence of the brass component at this stage. Major components are centered on Goss orientation and Cu component {112} as well as the BR component {236} . Also, there are some few orientations which come up after recrystallization i.e. {142} and {012} . With increase in annealing temperature the textural evolution shows emergence of weak texture with another new component i.e. {197} . The evolution of texture was correlated with the deformation texture through twin chain reaction