Generation of unipolar pulses in a circular Raman-active medium excited by few-cycle optical pulses

Abstract

We study theoretically a new possibility of unipolar pulses generation in Raman-active medium excited by a series of few-cycle optical pulses. We consider the case when the Raman-active particles are uniformly distributed along the circle, and demonstrate a possibility to obtain a unipolar rectangular video pulses with an arbitrarily long duration, ranging from a minimum value equal to the natural period of the low frequency vibrations in the Raman-active medium.

References in corpus (3)

• Transient Cherenkov radiation from an inhomogeneous string excited by an ultrashort laser pulse at superluminal velocity
• Light Propagation in Linear Arrays of Spherical Particles
• Interference of guiding polariton mode in "traffic" circle waveguides composed of dielectric spherical particles

Cited by in corpus (1)

• All-optical control of unipolar pulse generation in a resonant medium with nonlinear field coupling