The quality factor (Q-factor) is a dimensionless parameter that describes how underdamped an oscillator or resonator is. It is defined as the ratio of the energy stored in the resonator to the energy dissipated per cycle. In the context of nanotechnology, the Q-factor is crucial for understanding the efficiency and performance of nanoscale devices such as resonators, sensors, and other nanoelectromechanical systems (NEMS).
