TY - JOUR
T1 - Frequency shifting at fiber-optical event horizons: The effect of Raman deceleration
AU - Robertson, S.
AU - Leonhardt, U.
PY - 2010/6/30
Y1 - 2010/6/30
N2 - Pulses in fibers establish analogs of the event horizon [Philbin et al., Science 319, 1367 (2008)]. At a group-velocity horizon, the frequency of a probe wave is shifted. We present a theoretical model of this frequency shifting, taking into account the deceleration of the pulse caused by the Raman effect. The theory shows that the probe-wave spectrum is sensitive to details of the probe-pulse interaction. Our results indicate an additional loss mechanism in the experiment [Philbin et al., Science 319, 1367 (2008)] that has not been accounted for. Our analysis is also valid for more general cases of the interaction of dispersive waves with decelerated solitons.
AB - Pulses in fibers establish analogs of the event horizon [Philbin et al., Science 319, 1367 (2008)]. At a group-velocity horizon, the frequency of a probe wave is shifted. We present a theoretical model of this frequency shifting, taking into account the deceleration of the pulse caused by the Raman effect. The theory shows that the probe-wave spectrum is sensitive to details of the probe-pulse interaction. Our results indicate an additional loss mechanism in the experiment [Philbin et al., Science 319, 1367 (2008)] that has not been accounted for. Our analysis is also valid for more general cases of the interaction of dispersive waves with decelerated solitons.
KW - ZERO-DISPERSION WAVELENGTH
KW - ULTRASHORT SOLITON PULSES
KW - PHOTONIC-CRYSTAL FIBERS
KW - OPTICAL FIBERS
UR - http://www.scopus.com/inward/record.url?scp=77954220297&partnerID=8YFLogxK
UR - http://link.aps.org/doi/10.1103/PhysRevA.81.063835
U2 - 10.1103/PhysRevA.81.063835
DO - 10.1103/PhysRevA.81.063835
M3 - Article
SN - 1050-2947
VL - 81
JO - Physical Review. A, Atomic, molecular, and optical physics
JF - Physical Review. A, Atomic, molecular, and optical physics
IS - 6
ER -