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Adsorption of para-hydrogen films on Alkali metals substrates at low temperature is studied theoretically by means of Path Integral Monte Carlo simulations. Realistic potentials are utilized to model the interaction between two…

Statistical Mechanics · Physics 2009-11-11 M. Boninsegni

We report a novel method for depositing patterned dielectric layers with sub-micron features using atomic layer deposition (ALD). The patterned films are superior to sputtered or evaporated films in continuity, smoothness, conformality, and…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. J. Biercuk , D. J. Monsma , C. M. Marcus , J. S. Becker , R. G. Gordon

Metallic diffusion-limited aggregate (DLA) films are well-known to exhibit near-perfect broadband optical absorption. We demonstrate that such films also manifest a substantial and relatively material-independent photoacoustic response, as…

Other Condensed Matter · Physics 2016-11-23 Krutik Patel , Morgan Brubaker , Alexander Kotlerman , Robert Salazar , Eli Wolf , David Weld

The absorption and extinction spectra of sub-wavelength cylinder arrays are shown to present two different kind of resonances. Close to the Rayleigh anomalies, the diffractive coupling with the lattice periodicity leads to sharp peaks in…

Optics · Physics 2007-05-23 Marine Laroche , Raquel Gomez-Medina , Juan Jose Saenz

Plasmonic materials and metamaterials have been widely utilized to achieve spectral transmission, reflection and absorption filters based on localized or delocalized resonances arising from the interaction of photons with nanostructured…

Optics · Physics 2014-10-30 Zhongyang Li , Serkan Butun , Koray Aydin

We report the synthesis of complex salts made from the cationic surfactant dodecyltrimethyl-ammonium and diblock copolymers poly(acrylic acid)-block-poly(acrylamide) of different molecular weights. In water, the complex salts self-assemble…

Materials Science · Physics 2013-10-29 Leticia Vitorazi , Jean-Francois Berret , Watson Loh

In recent years, excitation of surface phonon polaritons (SPhPs) in van der Waals materials received wide attention from the nanophotonics community. Alpha-phase Molybdenum trioxide ($\alpha$-MoO3), a naturally occurring biaxial hyperbolic…

Photodynamically active fibres (PAFs) are a novel class of stimulus-sensitive systems capable of triggering antibiotic-free antibacterial effect on-demand when exposed to light. Despite their relevance in infection control, however, the…

Tissues and Organs · Quantitative Biology 2021-01-07 Amy Contreras , Michael J. Raxworthy , Simon Wood , Giuseppe Tronci

We report the synthesis of halogenated carbon atomic wires (halopolyynes) via pulsed laser ablation in liquid and their comprehensive Raman characterization. Using dichloromethane and dibromomethane-containing solutions, we produced…

The pursuit of green methodologies for fabricating optoelectronic devices necessitates the adoption of self-assembly-based strategies to engineer efficient and sustainable platforms. Microbubble lithography (MBL) stands out as a directed…

Applied Physics · Physics 2025-06-12 Anand Dev Ranjan , Dhananjay Mahapatra , Partha Mitra , Ayan Banerjee

A general approach for calculating spectral and optical properties of pigment-protein complexes of known atomic structure is presented. The method, that combines molecular dynamics simulations, quantum chemistry calculations and statistical…

Biological Physics · Physics 2009-11-11 Lorant Janosi , Ioan Kosztin , Ana Damjanovic

Laser-induced electron diffraction is an evolving tabletop method, which aims to image ultrafast structural changes in gas-phase polyatomic molecules with sub-{\AA}ngstr\"om spatial and femtosecond temporal resolution. Here, we provide the…

Non-toxic potassium and sodium metal compounds have been prepared with a bulky aryloxide ligand MOR 1 y 2 as well, their counterparts containing a crown ether bonded to the alkali metal 3 y 4 and fully characterized. The activity of…

Layer-by-Layer (LbL) assembly was attractive as a versatile tool to address the flammability of cotton, while the washing fastness of LbL coating stayed an issue. Aiming to tackle this issue, LbL layers consisted of phenylphosphonic acid…

Soft Condensed Matter · Physics 2022-03-02 Can Fu , Xiaoli Xu , Guang-Zhong Yin , Baoyun Xu , Pingyang Li , Bo Ai , Zhongjie Zhai , Fei GaO , Jinguo Zhai , De-Yi Wang

Tritium permeation into and through materials poses a critical challenge for the development of nuclear fusion reactors. Minimizing tritium permeation is essential for the safe and efficient use of available fuel supplies. In this work, we…

In a joint theoretical and experimental work the optical properties of azobenzene-functionalized self-assembled monolayers (SAMs) are studied at different molecular packing densities. Our results, based on density-functional and many-body…

Materials Science · Physics 2016-12-19 Caterina Cocchi , Thomas Moldt , Cornelius Gahl , Martin Weinelt , Claudia Draxl

We investigate the Lyman alpha line transfer in nearby and high redshift starbursting galaxies, where the effect of high optical depths and the role of dust in the scattering medium are expected to be conspicuous and should be treated in a…

Astrophysics · Physics 2009-10-31 Sang-Hyeon Ahn , Hee-Won Lee , Hyung Mok Lee

A new light responsive arylazopyrazole (AAP) containing polymer matrix thin film is fabricated by spin-coating of different concentrations of the AAP azo dye into the polydimethylsiloxane (PDMS) polymer at 150C. The new AAP molecular switch…

Context. The 3.3 $\mu$m aromatic C-H stretching band of polycyclic aromatic hydrocarbon (PAH) molecules seen in a wide variety of astrophysical regions is often accompanied by a series of weak satellite bands at ~3.4-3.6 $\mu$m. One of…

Instrumentation and Methods for Astrophysics · Physics 2019-12-04 Tao Chen , Yi Luo , Aigen Li

Surface lattice resonance supported on plasmonic nanoparticle arrays enhances light-matter interactions for applications such as photoluminescence enhancement. The photoluminescence process is enhanced through confining light beyond the…

Optics · Physics 2024-06-14 Joshua T. Y. Tse , Shunsuke Murai , Katsuhisa Tanaka