Physics – Optics
Scientific paper
2007-11-28
Phys. Rev. Lett. 100, 203903 (2008)
Physics
Optics
4 pages, 3 figures, 3 avi movies (external link) - accepted in PRL
Scientific paper
10.1103/PhysRevLett.100.203903
Ultra-high frequency acoustic resonances ($\backsim$2 GHz) trapped within the glass core ($\backsim$1 $\mu$m diameter) of a photonic crystal fiber are selectively excited through electrostriction using laser pulses of duration 100 ps and energy 500 pJ. Using precisely timed sequences of such driving pulses, we achieve coherent control of the acoustic resonances by constructive or destructive interference, demonstrating both enhancement and suppression of the vibrations. A sequence of 27 resonantly-timed pulses provides a 100-fold increase in the amplitude of the vibrational mode. The results are explained and interpreted using a semi-analytical theory, and supported by precise numerical simulations of the complex light-matter interaction.
Brenn A.
Fragnito Hugo L.
Russell Philip St. J.
Wiederhecker Gustavo S.
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