Simion Astilean

TL;DR: In this paper, the use of self-assembled-monolayer (SAM-) based substrate modification for optimum SERS activity and wider applications is discussed. But, the focus of the paper is on the SAMs to improve analytical applications of SERS substrates by addressing issues including long-term stability, selectivity, reproducibility, and functionalization.

TL;DR: In this article, the theoretical performance of blazed binary diffractive elements composed of pillars carefully arranged on a two-dimensional grid whose period is smaller than the structural cutoff was investigated through electromagnetic theories.

TL;DR: A new structural cutoff beyond which subwavelength gratings cease to behave as homogeneous media is introduced and its effects on the proper selection of the sampling periods of subwa wavelength diffractive elements are discussed.

TL;DR: The performance of newly synthesized chitosan-coated silver nanotriangles (Chit-AgNTs) with strong resonances in near-infrared (NIR) to operate as photothermal agents against a line of human non-small lung cancer cells is reported.

TL;DR: In this article, a resonant cavity-enhanced light transmission mechanism in metallic gratings with subwavelength apertures is theoretically interpreted for operation with visible light and it is shown that under appropriate boundary conditions, the aperture behaves as open Fabry-Perot resonant cavities delivering a high photon flux, and that the coupling between the incident light and the fundamental mode supported by the aperture is strongly controlled by surface waves.