We have investigated the interaction between a strong soliton and a weak probe with certain configurations that allow optical trapping in gas-filled hollow-core photonic-crystal fibers in the presence of the shock effect. We have shown theoretically and numerically that the shock term can lead to an unbroken parity-time- (PT-) symmetric potential in these kinds of fibers. Time irreversible behavior, a signature feature of the PT symmetry, is also demonstrated numerically. Our results will open different configurations and avenues for observing PT-symmetry breaking in optical fibers, without the need to resort to complex optical systems. Â© 2014 American Physical Society.
|Titolo:||Shock-induced PT -symmetric potentials in gas-filled photonic-crystal fibers|
MARINI, Andrea [Supervision]
|Data di pubblicazione:||2014|
|Appare nelle tipologie:||1.1 Articolo in rivista|