2000/08/23 by Thomas Rößler, T. Roessler, J. B. Page · 4 citations
Physics and Astronomy · #Advanced Fiber Laser Technologies #Laser-Matter Interactions and Applications #Nonlinear Photonic Systems #cond-mat.mtrl-sci #nlin.PS
paper · pdf · doi:10.1103/physrevb.62.11460
published as Phys. Rev. B 62, 11460 (2000) · 20 pages, 7 eps figures. Accepted, Phys. Rev. B
arxiv created 2000/08/23 · openalex publication_date 2000/11/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Using an efficient optimal control scheme to determine the exciting fields, we theoretically demonstrate the optical creation of vibrational intrinsic localized modes (ILM's) in anharmonic perfect lattices with realistic interatomic potentials. For systems with finite size, we show that ILM's can be excited directly by applying a sequence of femtosecond visible laser pulses at THz repetition rates. For periodic lattices, ILM's can be created indirectly via decay of an unstable extended lattice mode which is excited optically either by a sequence of pulses as described above or by a single picosecond far-infrared laser pulse with linearly chirped frequency. In light of recent advances in experimental laser-pulse shaping capabilities, the approach is experimentally promising.