Centro de Investigaciones en Optica

Polarization dynamics of an NPR-based Q-switched mode-locked twisted fiber ring laser

In this work, we study the passive mode-locked and Q-switched mode-locked (QSML) operations of an erbium-doped fiber ring laser with twisted fiber in the cavity. Using twisted fiber together with precisely adjusted wave retarders, this configuration allows very tight polarization...

Nitrogen deprivation differentially alters lipid accumulation and pyrolysis-derived volatile profiles in three microalgal species

Nitrogen deprivation (N−) is widely used to induce lipid accumulation in microalgae. However, its impact on the relationship between lipid accumulation and thermochemical behavior remains poorly understood. In this study, a comparative experimental approach was used to evaluate t...

Mobile terahertz spectroscopy for in-situ evaluation of structural characteristics in wooden artefacts

Abstract Conserving fragile wooden artworks requires diagnostics that detect minimal structural changes without invasive intervention. We used a robotic-arm terahertz time-domain spectroscopy (THz TDS) system to study the centrepiece of the Marienaltar in Isenhagen Monastery (Han...