The open spectroscopy journal

Optimal Conditions for a Multimode Laser Diode with Delayed Optical Feedback in Terahertz Time-Domain Spectroscopy

Pub Date : 2023-11-04 DOI: 10.3390/spectroscj1030012 Kenji Wada, Tokihiro Kitagawa, Tetsuya Matsuyama, Koichi Okamoto, Fumiyoshi Kuwashima

A Spectroscopy-Based Multi-Analytical Approach for Studies in Conservation: Decorations in the Alexander Palace (Tsarskoye Selo)

Pub Date : 2023-10-20 DOI: 10.3390/spectroscj1030011 Marilena Ricci, Federico Sebastiani, Maurizio Becucci, Mikhail Rogozny, Vadim Parfenov

Rotational Isomerism of the Side Chains of Hydroxypropyl Cellulose in Aqueous Solution Observed Using Attenuated Total Reflectance Infrared Spectroscopy

Pub Date : 2023-10-13 DOI: 10.3390/spectroscj1030010 Mark A. Davies