Nano-Magnetophotonics

Inoue, M.; Khanikaev, Alexander B.; Baryshev, A. V.

doi:10.1007/978-0-387-85600-1_21

Cited by 16 publications

(14 citation statements)

References 98 publications

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“…Other work on STO films [50] has shown changes in cation stoichiometry and hence lattice parameter at different laser focus conditions, but here we keep the deposition conditions nominally the same except for the base pressure, so we attribute changes in lattice volume to the oxygen vacancies and corresponding changes in Fe ionic radius. MacChesney showed that oxygen vacancies in SrFeO 3−δ and SrCoO 3−δ , respectively, increased the unitcell volume [51,52], and a sufficiently large oxygen deficiency (δ > 0.12) promoted a cubic-to-tetragonal structural change in SrFeO 3−δ [42]. Perry et al showed that the largest lattice parameter is obtained for STF annealed under the most reducing conditions, based on chemical expansion measurements [34].…”

Section: B X-ray Characterizationmentioning

confidence: 99%

“…The STF films on Si were polycrystalline but exhibited a magnetic moment and FR up to 65% higher than the single-crystal film deposited on an STO substrate. From the viewpoint of applications, the formation of polycrystalline magnetic perovskite films on silica or other nonepitaxial substrates allows the useful properties of STF to be easily introduced into complementary metal-oxide semiconductor devices and into optical devices such as isolators and magnetophotonic crystals [4,[35][36][37][38][39], spatial light modulators [40][41][42], or magneto-optical holographic memories [43][44][45][46]. First-principles calculations demonstrate the importance of oxygen defects and exchange interactions in determining the magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

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Magnetism and Faraday Rotation in Oxygen-Deficient Polycrystalline and Single-Crystal Iron-Substituted Strontium Titanate

et al. 2017

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Both polycrystalline and single-crystal films of iron-substituted strontium titanate, SrðTi 0.65 Fe 0.35 ÞO 3−δ , prepared by pulsed laser deposition, show room-temperature magnetism and Faraday rotation, with the polycrystalline films exhibiting higher saturation magnetization and Faraday rotation. The magnetic properties vary with the oxygen pressure at which the films are grown, showing a maximum at pressures of approximately 4 μ Torr at which the unit-cell volume is largest. The results are discussed in terms of the oxygen stoichiometry and corresponding Fe valence states, the structure and strain state, and the presence of small-volume fractions of metallic Fe in single-crystal films grown at the optimum deposition pressure. Integration of magneto-optical polycrystalline films on an optical-waveguide device demonstrates a nonreciprocal phase shift.

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Section: B X-ray Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetism and Faraday Rotation in Oxygen-Deficient Polycrystalline and Single-Crystal Iron-Substituted Strontium Titanate

et al. 2017

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“…Further, an external magnetic field can modify frequencies and distributions of the modes giving rise to a multifaceted phenomenology2345. An additional degree of freedom opens up in metal-dielectric nanocomposites67 as well as periodic magnetic structures with the period close to the wavelength of a mode89101112131415.…”

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confidence: 99%

Plasmon-mediated magneto-optical transparency

et al. 2013

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Magnetic field control of light is among the most intriguing methods for modulation of light intensity and polarization on sub-nanosecond timescales. The implementation in nanostructured hybrid materials provides a remarkable increase of magneto-optical effects. However, so far only the enhancement of already known effects has been demonstrated in such materials. Here we postulate a novel magneto-optical phenomenon that originates solely from suitably designed nanostructured metal-dielectric material, the so-called magneto-plasmonic crystal. In this material, an incident light excites coupled plasmonic oscillations and a waveguide mode. An in-plane magnetic field allows excitation of an orthogonally polarized waveguide mode that modifies optical spectrum of the magneto-plasmonic crystal and increases its transparency. The experimentally achieved light intensity modulation reaches 24%. As the effect can potentially exceed 100%, it may have great importance for applied nanophotonics. Further, the effect allows manipulating and exciting waveguide modes by a magnetic field and light of proper polarization.

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“…In general, RIGs have a garnet structure expressed as the general formula R 3 Fe 5 O 12 , where R indicates a rare-earth ion. Substituting elements in the R or iron site results in an interesting change in the magnetic and optical properties345, and variation in the substitution allows broad applications67 for RIGs. Despite the range of potential applications, there are few studies on magnetooptical (MO) Q-switches using RIGs.…”

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confidence: 99%

Magnetic domains driving a Q-switched laser

Morimoto

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Pritchard

et al. 2016

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A 10-mm cavity length magnetooptically Q-switched Nd:GdVO4 laser was demonstrated using a single-crystalline ferrimagnetic rare-earth iron garnet film. To design the Q-switching system, the magnetic, optical, and magnetooptical properties of the garnet film were measured. The diode pumped solid-state laser cavity was constructed using a 190-μm-thick garnet film with 58% transmittance. The garnet film had maze-shaped magnetic domains, and the domain walls disappeared when a field of over 200 Oe was applied. Therefore, the polarization state of the transmitted light was modified by modulating the magnetization, and a Q-switched pulse output with a pulse width of 5 ns and peak power of 255 W was achieved in the 10-mm-long cavity. The physical limitation of the pulse width was discussed with the calculated results.

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Nano-Magnetophotonics

Cited by 16 publications

References 98 publications

Magnetism and Faraday Rotation in Oxygen-Deficient Polycrystalline and Single-Crystal Iron-Substituted Strontium Titanate

Magnetism and Faraday Rotation in Oxygen-Deficient Polycrystalline and Single-Crystal Iron-Substituted Strontium Titanate

Plasmon-mediated magneto-optical transparency

Magnetic domains driving a Q-switched laser

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