Malin Premaratne

Chiral Plasmonic Ellipsoids: An Extended Mie-Gans Model

Tharaka Perera, Sudaraka Mallawaarachchi, Malin Premaratne

Journal article  |  2021  |  JOURNAL OF PHYSICAL CHEMISTRY LETTERS

Mie-Gans theory optically characterizes ellipsoidal and by extension generally elongated nonchiral metal nanoparticles (MNPs) and ..

Machine learning based temperature prediction of poly(N-isopropylacrylamide)-capped plasmonic nanoparticle solutions

Sudaraka Mallawaarachchi, Yiyi Liu, San H Thang, Wenlong Cheng, Malin Premaratne

Journal article  |  2019  |  Physical Chemistry Chemical Physics

The temperature-dependent optical properties of gold nanoparticles that are capped with the thermo-sensitive polymer: ‘poly(N-isop..

Site-specific Ag coating on concave Au nanoarrows by controlling the surfactant concentration

Dashen Dong, Qianqian Shi, Debabrata Sikdar, Yunmeng Zhao, Yiyi Liu, Runfang Fu, Malin Premaratne, Wenlong Cheng

Journal article  |  2019  |  Nanoscale Horizons

Three distinct site-specific Ag-coated Au nanoarrows are achieved by simply controlling the CTAC concentration of growth solution ..

Source-Based Jamming for Physical-Layer Security on Untrusted Full-Duplex Relay

Saman Atapattu, Nathan Ross, Yindi Jing, Malin Preniaratne

Journal article  |  2019  |  IEEE COMMUNICATIONS LETTERS

We address the problem of secure wireless communications over an untrusted full-duplex (FD) relay based on the source jamming sche..

Ultrathin Fresnel lens based on plasmene nanosheets

KJ Si, D Dong, Q Shi, W Zhu, M Premaratne, W Cheng

Journal article  |  2019  |  Materials Today

Ultrathin Fresnel lens may revolutionize current optical imaging system, leading to thinner and lighter optoelectronic devices wit..

Superradiant Cancer Hyperthermia Using a Buckyball Assembly of Quantum Dot Emitters

Sudaraka Mallawaarachchi, Malin Premaratne, Philip K Maini

Journal article  |  2019  |  IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS

With the emergence of nanomedicine, targeted hyperthermia has a high potential of becoming a first-line cancer treatment modality...

Scattering characteristics of an exciton-plasmon nanohybrid made by coupling a monolayer graphene nanoflake to a carbon nanotube

Viraj Senevirathne, Harini Hapuarachchi, Sudaraka Mallawaarachchi, Sarath D Gunapala, Mark Stockman, Malin Premaratne

Journal article  |  2019  |  JOURNAL OF PHYSICS-CONDENSED MATTER

A hybrid nanostructure where a graphene nanoflake (GNF) is optically coupled to a carbon nanotube (CNT) could potentially possess ..

Radial breathing modes coupling in plasmonic molecules.

Fajun Xiao, Guanglin Wang, Wuyun Shang, Weiren Zhu, Lei Han, Ting Mei, Malin Premaratne, Jianlin Zhao

Journal article  |  2019  |  Opt Express

Metallic hexamer, very much the plasmonic analog of benzene molecule, provides an ideal platform to mimic modes coupling and hybri..

Unidirectional scattering exploited transverse displacement sensor with tunable measuring range.

Wuyun Shang, Fajun Xiao, Weiren Zhu, Lei Han, Malin Premaratne, Ting Mei, Jianlin Zhao

Journal article  |  2019  |  Opt Express

We propose a scheme to extend the measuring range of a transverse displacement sensor by exploiting the interaction of an azimutha..

Exciton behavior under the influence of metal nanoparticle near fields: Significance of nonlocal effects

H Hapuarachchi, SD Gunapala, Q Bao, MI Stockman, M Premaratne

Journal article  |  2018  |  Physical Review B

We analytically characterize the influence of a neighboring metal nanoparticle (MNP) on the behavioral trends of a quantum dot (QD..