2-D PSTD simulation of focusing monochromatic light through a macroscopic scattering medium via optical phase conjugation
Journal
Biomedical Optics Express
Journal Volume
6
Journal Issue
3
Pages
815-826
Date Issued
2015
Author(s)
Abstract
By employing the pseudospectral time-domain (PSTD) simulation technique, we analyze the propagation of monochromatic light through a macroscopic scattering medium. Simulation results show that, monochromatic light can be directed through a scattering medium and focus into a narrow peak; a range of wavelengths has been simulated. Furthermore, we compare: i) focusing monochromatic light through a macroscopic scattering medium, and, ii) focusing monochromatic light through vacuum. Based upon numerical solutions of Maxwell’s equations, we demonstrate: with a fully-surrounding wavefront of specific amplitude and phase, sub-diffraction focusing can be achieved with monochromatic light, with or without the presence of a scattering medium. © 2015 Optical Society of America.
Other Subjects
Focusing; Maxwell equations; Time domain analysis; Macroscopic scattering; Monochromatic light; Numerical solution; Pseudospectral time domain; Scattering medium; Simulation technique; Sub-diffraction; Monochromators; Article; back propagation; computer simulation; conjugation; electromagnetic field; image analysis; light scattering; mathematical parameters; measurement accuracy; optical phase conjugation; refraction index; two dimensional pseudospectral time domain simulation technique
Type
journal article