https://scholars.lib.ntu.edu.tw/handle/123456789/502086
Title: | Exploring the feasibility of focusing CW light through a scattering medium into closely spaced twin peaks via numerical solutions of Maxwell's equations | Authors: | SNOW H. TSENG Chang, S.-H. |
Issue Date: | 2018 | Journal Volume: | 57 | Journal Issue: | 4 | Source: | Japanese Journal of Applied Physics | Abstract: | Here we present a numerical simulation to analyze the effect of scattering on focusing light into closely-spaced twin peaks. The pseudospectral time-domain (PSTD) is implemented to model continuous-wave (CW) light propagation through a scattering medium. Simulations show that CW light can propagate through a scattering medium and focus into closely-spaced twin peaks. CW light of various wavelengths focusing into twin peaks with sub-diffraction spacing is simulated. In advance, light propagation through scattering media of various number densities is simulated to decipher the dependence of CW light focusing phenomenon on the scattering medium. The reported simulations demonstrate the feasibility of focusing CW light into twin peaks with sub-diffraction dimensions. More importantly, based upon numerical solutions of Maxwell's equations, research findings show that the sub-diffraction focusing phenomenon can be achieved with scarce or densely-packed scattering media. © 2018 The Japan Society of Applied Physics. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/502086 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044425792&doi=10.7567%2fJJAP.57.042001&partnerID=40&md5=9796199c6864280e197b98e163b03549 |
ISSN: | 00214922 | DOI: | 10.7567/JJAP.57.042001 | SDG/Keyword: | Diffraction; Focusing; Light propagation; Continuous wave lights; Focusing phenomenons; Number density; Numerical solution; Pseudospectral time domain; Scattering media; Scattering medium; Sub-diffraction; Maxwell equations |
Appears in Collections: | 光電工程學研究所 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.