Special seminar of the Department of Photonics: Ultrasensitive spin-based sensing: Science, technology, and application (C-1-15; 14:15)

With the rapid development of quantum precision measurement, particularly in the active control and manipulation of quantum systems, the accuracy of measuring physical quantities such as electromagnetic fields, rotation, time, and gravity has been significantly enhanced. This advancement provides novel methods for frontier scientific endeavors, including material detection and the test of fundamental physical principles. This report first introduces several newly discovered spin effects, such as the spin amplification effect, and the ultra-sensitive magnetic field sensing technology developed from these effects, achieving magnetic field sensitivity surpassing the fT level. Finally, the report will discuss how spin quantum precision measurement technology can be applied to precise measurements of chemical molecular structures, dark matter searches, and other research areas.