Dual-Wavelength On-Chip Integrated Metalens for Epi-Fluorescence Single-Molecule Sensing.

Single-molecule fluorescence spectroscopy offers unique capabilities for the low-concentration sensing and probing of molecular dynmics. However, employing such a methodology for versatile sensing and diagnostics under point-of-care demands device miniaturization to lab-on-a-chip size. In this study, we numerically design metalenses with high numerical aperture (NA = 1.

Leveraging Femtosecond Laser Ablation for Tunable Near-Infrared Optical Properties in MoS-Gold Nanocomposites.

Transition metal dichalcogenides (TMDCs), particularly molybdenum disulfide (MoS), have gained significant attention in the field of optoelectronics and photonics due to their unique electronic and optical properties. The integration of TMDCs with plasmonic materials allows to tailor the optical response and offers significant advantages for photonic applications. This study presents a novel approach to synthesize MoS-Au nanocomposites utilizing femtosecond laser ablation in liquid to achieve tunable optical properties in the near-infrared (NIR) region.

Application of Voronoi Polyhedra for Analysis of Electronic Dimensionality in Emissive Halide Materials.

The synthesis of new hybrid halide materials is attracting increasing research interest due to their potential optoelectronic applications. However, general design principles that explain and predict their properties are still limited. In this work, we attempted to reveal the role of intermolecular interactions on the optical properties in a series of hybrid halides with an (EtNH)SnTeCl ( = 1-4) composition.

Probability of entering an orthant by correlated fractional Brownian motion with drift: exact asymptotics.

For , where are mutually independent fractional Brownian motions, we obtain the exact asymptotics of where is a non-singular matrix and , are such that there exists some such that