SNOW H. TSENG2018-09-102018-09-10201521567085http://www.scopus.com/inward/record.url?eid=2-s2.0-84942369659&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/390744By 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.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 techniquejournal article10.1364/BOE.6.000815