The THz Structural Dynamics group of the Department of Physical Chemistry at the Fritz Haber Institute has made a significant advancement in light research, as detailed in their recent publication in the journal Optica, titled „Quartz as an Accurate High-Field Low-Cost THz Helicity Detector.” Their work introduces a fast, cost-efficient, and precise technique for analyzing complex waveforms of Terahertz (THz) light, a part of the far-infrared spectrum that is invisible to the naked eye and most detectors. Strong THz laser pulses are further crucial for exploring and manipulating fundamental properties of materials at ultrafast speeds.