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Application of transition metal dichalcogenides (TMDC) in photonic, optoelectronic or valleytronic devices requires the growth of continuous monolayers, heterostructures and alloys of different materials in a single process. We present a…

Quenching of thermal emission above 0 K is an unusual material property, essential for future energy, transportation, and space technologies. Despite the great effort invested, nearly complete quenching of thermal radiation rather than some…

Materials with high dielectric constant are in great demand for the miniaturization of electronic devices. More specifically, high dielectric constant polymer-ceramic composites are useful for embedded capacitor applications. A composite…

Materials Science · Physics 2013-01-18 P. Thomas , R. S. Ernest Ravindran , K. B. R. Varma

Plasmonic nanopores are extensively investigated as single molecules detectors. The main limitations in plasmonic nanopore technology are the too fast translocation velocity of the molecule through the pore and the consequent very short…

Applied Physics · Physics 2021-05-12 Nicolò Maccaferri , Paolo Vavassori , Denis Garoli

We report on the development of some process capabilities for a polymer-based, multi-layer microelectrofluidic platform, namely: the hot embossing process, metallization on polymer and polymer bonding. Hot embossing experiments were…

Other Computer Science · Computer Science 2007-11-29 S. -H. Ng , Z. -F. Wang , R. -T. Tjeung , N. De Rooij

Nanoparticle monolayer sheets are ultrathin inorganic-organic hybrid materials that combine highly controllable optical and electrical properties with mechanical flexibility and remarkable strength. Like other thin sheets, their low bending…

In the present work we propose "nanofluid filled enclosures" as potential photo-thermal energy conversion and sensible heat storage devices. Herein, the optical charging of the nanofluid has been modeled as "solar radiant energy -…

Applied Physics · Physics 2022-03-15 Inderpreet Singh , Satbir Singh Sehgal , Vikrant Khullar

We present simulations of an efficient high numerical aperture solid immersion metalens concept for fluorescence microscopy. The technique exploits the preferential emission of interfacial dipoles into a high refractive index substrate…

Optics · Physics 2022-01-12 Zhiheng Li , Zequan Chen , Rupert F. Oulton , Ming Fu

Poly(Methyl Methacrylate) (PMMA) and CaCu3Ti4O12 (CCTO) composites were fabricated via melt mixing followed by hot pressing technique. These were characterized using X-ray diffraction (XRD), thermo gravimetric (TGA), Thermo Mechanical…

Materials Science · Physics 2013-01-21 P. Thomas , R. S. Ernest Ravindran , K. B. R. Varma

Transition metal dichalcogenides have emerged as promising materials for nano-photonic resonators due to their large refractive index, low absorption within a large portion of the visible spectrum and compatibility with a wide range of…

Thermally conductive polymers are of fundamental interest and can also be exploited in thermal management applications. Recent studies have shown stretched polymers can achieve high thermal conductivity. However, the transport mechanisms of…

A promising approach to the fabrication of materials with nanoscale features is the transfer of liquid-crystalline structure to polymers. However, this has not been achieved in systems with full three-dimensional periodicity. Here we…

Controlling size and shape of semiconducting nanocrystals advances nanoelectronics and photonics. Quantum confined, inexpensive, solution derived metal halide perovskites offer narrow band, color-pure emitters as integral parts of…

Colloidal crystals exhibit structural color without any color pigment due to the crystals' periodic nanostructure, which can interfere with visible light. This crystal structure is iridescent as the resulting color changes with the viewing…

Soft Condensed Matter · Physics 2018-10-16 Seung Yeol Lee , Hyoungsoo Kim , Shin-Hyun Kim , Howard A. Stone

We present an experimental demonstration of near-field optical trapping and dynamic manipulation of a single extracellular vesicle using a plasmonic dielectric nanoantenna that supports an optical anapole state. The optical anapole is a…

Optics · Physics 2023-08-24 Chuchuan Hong , Ikjun Hong , Yuxi Jiang , Justus C. Ndukaife

Outstanding optoelectronic properties and a facile synthesis render halide perovskite nanocrystals (NCs) a promising material for nanostructure-based devices. However, the commercialization is hindered mainly by the lack of NC stability…

Mesoscale and Nanoscale Physics · Physics 2022-09-26 Michèle G. Greiner , Andreas Singldinger , Nina A. Henke , Carola Lampe , Ulrich Leo , Moritz Gramlich , Alexander S. Urban

A bright source of fiber-coupled, polarized single photons is an essential component of any realistic quantum network based on today's existing fiber infrastructure. Here, we develop a Purcell enhanced, polarized source of single photons at…

Quantum Physics · Physics 2022-03-04 Masakazu Sugawara , Yining Xuan , Yasuyoshi Mitsumori , Keiichi Edamatsu , Mark Sadgrove

Two-dimensional transition-metal dichalcogenides (TMDC) are of great interest for on-chip nanophotonics due to their unique optoelectronic properties. Here, we propose and realize coupling of tungsten diselenide (WSe2) monolayers to…

Metalens research has made major advances in recent years. These advances rely on the simple design principle of arranging meta-atoms in regular arrays to create an arbitrary phase and polarization profile. Unfortunately, the concept of…

From raindrops to planets, the scattering of electromagnetic fields introduces exciting phenomena that can be utilized for display devices. Here, we designed an electrochromic nanoparticle on mirror (eNPoM) structure with core-shell…

Optics · Physics 2025-10-21 Md. Shariful Islam , Ahmed Zubair