Further examples of anharmonic oscillators include the large-angle pendulum; nonequilibrium semiconductors that possess a large hot carrier population, which exhibit nonlinear behaviors of various types related to the effective mass of the carriers; and ionospheric plasmas, which also exhibit nonlinear behavior based ...

What is anharmonic oscillator in spectroscopy?

Anharmonic oscillation is defined as the deviation of a system from harmonic oscillation, or an oscillator not oscillating in simple harmonic motion.

What is driven harmonic oscillator give example?

The object is making a sinusoidal movement and therefore the driving force is mostly a sinusoidal force. Another example is an electrical oscillator. For example a subwoofer. If a subwoofer is making a sound with a constant frequency, the membrane is making a harmonic oscillation.