Photonic superdiffusive motion in resonance radiation trapping.

Photonic superdiffusive motion in resonance line radiation trapping Partial frequency redistribution effects.

The relation between the jump length probability distribution function and the spectral line profile in resonance atomic radiation trapping is considered for partial frequency redistribution (PFR) between absorbed and reemitted radiation. The single line opacity distribution function [M. N. Berberan-Santos et al., J. Chem. Phys. 125, 174308 (2006)] is generalized for PFR and used to discuss sev...

Modeling of Resonant Optical Trapping in a 2D Photonic Crystal Cavity

Photonic crystals (PhC) are optical nanostructures that are widely known for their strong spatial and temporal confinement of electromagnetic radiation. Light confinement at the nanoscale gives rise to large gradients of electromagnetic field that could allow us to trap small nanoparticles with very low optical powers. In this context, PhC cavities with a larger field overlap ratio with the sur...

Optical trapping via guided resonance modes in a Slot-Suzuki-phase photonic crystal lattice.

A novel photonic crystal lattice is proposed for trapping a two-dimensional array of particles. The lattice is created by introducing a rectangular slot in each unit cell of the Suzuki-Phase lattice to enhance the light confinement of guided resonance modes. Large quality factors on the order of 10⁵ are predicted in the lattice. A significant decrease of the optical power required for optical t...

Soliton-radiation trapping in gas-filled photonic crystal fibers

Design and Fabrication of a Four-Dimensional Respiratory Phantom for Studying Tumor Movement in Radiotherapy with Magnetic Resonance Imaging

Introduction: In radiation therapy, determining the location of the tumor accurately during irradiation is one of the most important requirements. However, lung tumors are not fixed in a single location and move during irradiation due to respiratory motion. Due to limitations in assessing such movements, using a lung phantom can be useful and operational for their fast, easy an...