Preprint Article Version 1 This version is not peer-reviewed

Measurement of Electron Density from Stark-Broadened Nanomaterial Plasma

Version 1 : Received: 31 July 2018 / Approved: 1 August 2018 / Online: 1 August 2018 (08:02:03 CEST)

A peer-reviewed article of this Preprint also exists.

EL Sherbini, A.M.; EL Sherbini, A.E.; Parigger, C.G. Measurement of Electron Density from Stark-Broadened Spectral Lines Appearing in Silver Nanomaterial Plasma. Atoms 2018, 6, 44. EL Sherbini, A.M.; EL Sherbini, A.E.; Parigger, C.G. Measurement of Electron Density from Stark-Broadened Spectral Lines Appearing in Silver Nanomaterial Plasma. Atoms 2018, 6, 44.

Journal reference: Atoms 2018, 6, 44
DOI: 10.3390/atoms6030044

Abstract

This work communicates results from optical emission spectroscopy following laser-induced optical breakdown at or near nanomaterial. Selected atomic lines of silver are evaluated for consistent determination of electron density. Comparisons are presented with Balmer series hydrogen results. Of particular interest are measurements free of self-absorption effects. For several silver lines, asymmetries are observed in the recorded line profiles. Electron densities of interest range from 0.5 to 3 × 1017 cm-3, for 5 nanosecond Q-switched Nd:YAG radiation at wavelengths of 1064, 532, and 355 nm, and for selected silver emission lines including 328.0, 338.2, 768.7, and 827.3 nm, and the hydrogen alpha Balmer series line at 656.3 nm. Line asymmetries are presented for the 328.0 nm Ag I line that is measured following generation of the plasma due to multiple photon absorption. This work explores electron density variations for different irradiance levels, and reports spectral line asymmetry of resonance lines for different laser fluence levels.

Subject Areas

laser-induced plasma; stark broadening; electron density; nanomaterial; atomic spectroscopy; silver; hydrogen

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.