A 2D nanosphere array for atomic spectroscopy

TL;DR

This paper presents the creation and optical characterization of a self-organized 2D silica nanosphere array, aiming to explore atomic spectroscopy in confined nanometric volumes, with potential applications in porous media like photonic crystals.

Contribution

It introduces a novel method for fabricating and analyzing 2D nanosphere arrays using laser diffraction, providing insights into their structure relevant for atomic spectroscopy.

Findings

Laser diffraction effectively characterizes the nanosphere array structure.

The self-organized silica nanosphere array is suitable for spectroscopic studies.

Complementary use of laser diffraction and electron microscopy enhances structural analysis.

Abstract

We are interested in the spectroscopic behaviour of a gas confined in a micrometric or even nanometric volume. Such a situation could be encountered by the filling-up of a porous medium, such as a photonic crystal, with an atomic gas. Here, we discuss the first step of this program, with the generation and characterization of a self-organized 2D film of nanospheres of silica. We show that an optical characterization by laser light diffraction permits to extract some information on the array structure and represents an interesting complement to electron microscopy.