Three-dimensional recording by tightly focused femtosecond pulses in LiNbO₃
Date
2006-08-07
Authors
Juodkazis, Saulius
Sudzius, Markas
Mizeikis, Vygantas
Misawa, Hiroaki
Gamaly, Eugene G
Liu, Youwen
Louchev, Oleg A.
Kitamura, Kenji
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics (AIP)
Abstract
The 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.
Description
Keywords
Keywords: Iron; Irradiation; Lithium niobate; Optical recording; Photovoltaic effects; Refractive index; Semiconductor doping; Dielectric breakdown; Fe doping; Femtosecond pulses; Refractive index modulation; Laser pulses
Citation
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Source
Applied Physics Letters
Type
Journal article