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Type: Artigo de periódico
Title: Coherent control of ultrahigh-frequency acoustic resonances in photonic crystal fibers
Author: Wiederhecker, GS
Brenn, A
Fragnito, HL
Russell, PSJ
Abstract: Ultrahigh frequency acoustic resonances (2 GHz) trapped within the glass core (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 semianalytical theory, and supported by precise numerical simulations of the complex light-matter interaction.
Country: EUA
Editor: Amer Physical Soc
Citation: Physical Review Letters. Amer Physical Soc, v. 100, n. 20, 2008.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.100.203903
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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