Juodkazis, SauliusSudzius, MarkasMizeikis, VygantasMisawa, HiroakiGamaly, Eugene GLiu, YouwenLouchev, Oleg A.Kitamura, Kenji2015-12-212015-12-210003-6951http://hdl.handle.net/1885/95154The authors report on a three-dimensional single-shot optical recording by 150fs pulses at 800nm wavelength in Fe doped LiNbO₃. The rewritable bits (2ₓ×2y×8zμm³) are demonstrated. The highest refractive index modulation of ∼10⁻³ per single pulse has been formed by preferential photovoltaiceffect at close to the dielectric breakdownirradiance of ∼TW/cm² and was independent of polarization (in respect to the c axis). The achievable refractive index modulation is evaluated and the recording mechanisms are discussed.One of the authors M.S. thanks the Matsumae International Foundation for the research fellowship. Another author E.G.G. acknowledges support of the Australian Research Council through its Center of Excellence.http://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 21/12/15). Copyright 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/1.2335364Keywords: Iron; Irradiation; Lithium niobate; Optical recording; Photovoltaic effects; Refractive index; Semiconductor doping; Dielectric breakdown; Fe doping; Femtosecond pulses; Refractive index modulation; Laser pulses2006-08-0710.1063/1.23353642016-02-24