Nonstationary coherent optical effects in acetylene-filled hollow core photonic crystal fibers

Abstract

We report studies of the nonstationary coherent effects, i.e., free optical induction, optical nutation, and photon echo, in a hollow-core photonic crystal fiber filled with acetylene. Nanosecond optical pulses were used in the experiments. The transverse relaxation time was estimated to be about 3 nanoseconds.