A simplified definition is the THD is the ratio of the sum of the power of all harmonic frequencies to the power of the fundamental frequency. If a circuit produced a perfect sine wave ...

From this procedure we are able to see that the response of the building is dominated by the jth mode when the frequency of excitation is tuned to near the jth natural frequency. Shown below are ...

High harmonic generation (HHG) is a highly non-linear phenomenon where a system (for example, an atom) absorbs many photons of a laser and emits photons of much higher energy, whose frequency is a ...

Asynchronous dual-comb generated in single laser cavity offer potent tools for simplified coherent measurements, owing to the common mode rejection which spares the sophisticated locking systems.