Lithium niobate piezo-optomechanical crystals
نویسندگان
چکیده
منابع مشابه
Femtosecond holography in lithium niobate crystals.
Spatial gratings are recorded holographically by two femtosecond pump pulses at 388 nm in lithium niobate (LiNbO3) crystals and read out by a Bragg-matched, temporally delayed probe pulse at 776 nm. We claim, to our knowledge, the first holographic pump-probe experiments with subpicosecond temporal resolution for LiNbO3. An instantaneous grating that is due mostly to the Kerr effect as well as ...
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Illumination of photorefractive, iron-doped lithium niobate crystals (LiNbO3 :Fe) with x-rays generates a conductivity that we determine from the speed of hologram erasure. The doping levels of the crystals and the acceleration voltage of our x-ray tube are varied. A theoretical model is presented, which describes the obtained results. A decrease of the conductivity with increasing Fe concentra...
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Judith R. Schwesyg,* Matthias Falk, Chris R. Phillips, Dieter H. Jundt, Karsten Buse, and Martin M. Fejer E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA Institute of Physics, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany Crystal Technology, Inc., 1040 East Meadow Circle, Palo Alto, California 94303, USA Institute of Microsystem Technology, University ...
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Ultraviolet laser irradiation of a lithium niobate +z polar surface enables the production of ridge waveguides. Ultraviolet laser induced inhibition of poling is used to define an inverted domain pattern which transforms into a ridge structure by differential etching in Hydrofluoric acid. The laser irradiation step also induces a refractive index change that provides the vertical confinement wi...
متن کاملRecent Advances in the Photorefraction of Doped Lithium Niobate Crystals
The recent advances in the photorefraction of doped lithium niobate crystals are reviewed. Materials have always been the main obstacle for commercial applications of photorefractive holographic storage. Though iron-doped LiNbO3 is the mainstay of holographic data storage efforts, several shortcomings, especially the low response speed, impede it from becoming a commercial recording medium. Thi...
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ژورنال
عنوان ژورنال: Optica
سال: 2019
ISSN: 2334-2536
DOI: 10.1364/optica.6.000845