April 2021

Consigning SneakerNet to the Graveyard of Technology

April 01, 2021

Columns

“SneakerNet,” or the manual transfer of data using a disk or USB stick from one computer system to another, should be long dead, but this noncompliant transfer process still survives.

A Brush with Frequency Comb Spectroscopy: A Developing Story

April 01, 2021

Columns

A frequency comb is a laser source, with evenly spaced narrow lines, potentially useful for spectroscopy applications, particularly as a source or for alignment of the wavelength axis.

Terahertz Spectral Characterization of Plasma Spray–Deposited Nickel Film on an Alumina Cylinder

April 01, 2021

Peer-reviewed Articles

Plasma spray–deposited metal films are used in many industrial applications. This study shows how high resolution terahertz time-domain spectroscopy (THz-TDS) can be used to analyze and characterize such films.

Combining the WGAN and ResNeXt Networks to Achieve Data Augmentation and Classification of the FT-IR Spectra of Strawberries

April 01, 2021

Peer-Reviewed Research

The details of applying deep learning algorithms and FT-IR spectra are described for classification research using the spectra of strawberries as an example.

Synthesis of Differently Sized Gold Nanoparticles for SERS Applications in the Detection of Malachite Green

April 01, 2021

Peer-Reviewed Research

Surface-enhanced Raman spectroscopy (SERS), using gold nanoparticles, is useful for detection of low-levels of many analytes, including the water pollutant malachite green (MG).

Fundamental Research and Applications of ICP-OES and ICP-MS Toward Improved Understanding of Elemental Chemical Analysis: Part I

April 01, 2021

Spectroscopy Spotlight

Although ICP-OES and ICP-MS are often considered mature techniques, probing the mechanisms involved can lead to more accurate results, and in some cases, cast doubt on accepted explanations. John Olesik shares some surprises he has encountered, in this first part of a two-part interview series.