Structured light plays an important role in metrology, optical trapping and manipulation, communications, quantum technologies and nonlinear optics. Here, we demonstrate an alternative approach for ...

The measurement of magnetic fields has a long and rich history, beginning with the invention of the compass. The earliest known compass, the “south-governor” (sinan), dates back over 2000 years. Among ...

Accurate measurement of low-frequency electric fields remains an important task. However, conventional electric-field sensing technologies often struggle to combine traceability, small scale, and ...