Metamaterials enable real-life invisibility technology, bending light around objects and offering applications in military, surveillance, and conservation.
Optical amplifiers and modulators play an essential role in how data and information are rapidly transferred in a growing, interconnected, and interdependent world. Therefore, advancements in the performances of these two optical components are critically important to accommodate the growing networks of optical communication structures.
For the analysis of trace gases, a non-contact quartz-enhanced photoacoustic spectroscopy (NC-QEPAS) method has been demonstrated. The NC-QEPAS seeks to address the limitations of the quartz tuning fork (QTF), which is constrained in its application for sensing corrosive and dusty gas.