dc.contributor.authorJayachandra, Bangi
dc.contributor.authorHemalatha, M.
dc.contributor.authorAnita, R. W.
dc.contributor.authorVijayan, C.
dc.contributor.authorMurukeshan, Vadakke Matham
dc.identifier.citationJayachandra, B., Hemalatha, M., Anita, R. W., Vijayan, C., & Murukeshan, V. M. (2015). Asymmetric transmission and optical low-pass filtering in a stack of random media with graded transport mean free path. Optical Materials, 49, 15-20.en_US
dc.description.abstractLight transport and the physical phenomena related to light propagation in random media are very intriguing, they also provide scope for new paradigms of device functionality, most of which remain unexplored. Here we demonstrate, experimentally and by simulation, a novel kind of asymmetric light transmission (diffusion) in a stack of random media (SRM) with graded transport mean free path. The structure is studied in terms of transmission, of photons propagated through and photons generated within the SRM. It is observed that the SRM exhibits asymmetric transmission property with a transmission contrast of 0.25. In addition, it is shown that the SRM works as a perfect optical low-pass filter with a well-defined cutoff wavelength at 580 nm. Further, the photons generated within the SRM found to exhibit functionality similar to an optical diode with a transmission contrast of 0.62. The basis of this functionality is explained in terms of wavelength dependent photon randomization and the graded transport mean free path of SRM.en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent9 p.en_US
dc.relation.ispartofseriesOptical Materialsen_US
dc.rights© 2015 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Optical Materials, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.optmat.2015.08.013].en_US
dc.subjectAsymmetric transmissionen_US
dc.subjectRandom mediaen_US
dc.titleAsymmetric transmission and optical low-pass filtering in a stack of random media with graded transport mean free pathen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.description.versionAccepted versionen_US
dc.contributor.organizationCenter for Optical and Laser Engineeringen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record