Selective-area growth of magnetic garnet crystals by liquid-phase epitaxy and its application to waveguide devices

Hideki Yokoi, Tetsuya Mizumoto, Tomoaki Takano

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Magnetic garnet layers with the composition of (LuNdBi)3(FeAl)5O12 have been grown on (111)-oriented Gd3Ga5O12 (GGG) substrates, which are patterned with stripes of different widths using a Ti mask, by liquid-phase epitaxy to fabricate one-step grown magnetic garnet waveguides. The garnet layers were investigated by scanning electron microscopy, X-ray diffraction measurements, energy-dispersive X-ray analysis and reflection high-energy electron diffraction. The layers grown on Ti-masked regions had a coarse and uneven surface, which is attributed to the damage in the surface of GGG substrates during the growth. The waveguiding experiment indicated that the light waves could be guided within the waveguide with a propagation loss of approximately 0.7 dB/mm.

Original languageEnglish
Pages (from-to)4847-4851
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume38
Issue number8 B
Publication statusPublished - 1999 Aug 15
Externally publishedYes

Fingerprint

Liquid phase epitaxy
liquid phase epitaxy
Garnets
garnets
gadolinium-gallium garnet
Waveguides
waveguides
Crystals
crystals
Reflection high energy electron diffraction
Energy dispersive X ray analysis
Substrates
high energy electrons
Masks
x rays
masks
electron diffraction
damage
X ray diffraction
Scanning electron microscopy

Keywords

  • EDX
  • Liquid-phase epitaxy
  • Magnetic garnets
  • RHEED
  • Selective-area growth
  • SEM
  • XRD

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "Magnetic garnet layers with the composition of (LuNdBi)3(FeAl)5O12 have been grown on (111)-oriented Gd3Ga5O12 (GGG) substrates, which are patterned with stripes of different widths using a Ti mask, by liquid-phase epitaxy to fabricate one-step grown magnetic garnet waveguides. The garnet layers were investigated by scanning electron microscopy, X-ray diffraction measurements, energy-dispersive X-ray analysis and reflection high-energy electron diffraction. The layers grown on Ti-masked regions had a coarse and uneven surface, which is attributed to the damage in the surface of GGG substrates during the growth. The waveguiding experiment indicated that the light waves could be guided within the waveguide with a propagation loss of approximately 0.7 dB/mm.",
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AU - Yokoi, Hideki

AU - Mizumoto, Tetsuya

AU - Takano, Tomoaki

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N2 - Magnetic garnet layers with the composition of (LuNdBi)3(FeAl)5O12 have been grown on (111)-oriented Gd3Ga5O12 (GGG) substrates, which are patterned with stripes of different widths using a Ti mask, by liquid-phase epitaxy to fabricate one-step grown magnetic garnet waveguides. The garnet layers were investigated by scanning electron microscopy, X-ray diffraction measurements, energy-dispersive X-ray analysis and reflection high-energy electron diffraction. The layers grown on Ti-masked regions had a coarse and uneven surface, which is attributed to the damage in the surface of GGG substrates during the growth. The waveguiding experiment indicated that the light waves could be guided within the waveguide with a propagation loss of approximately 0.7 dB/mm.

AB - Magnetic garnet layers with the composition of (LuNdBi)3(FeAl)5O12 have been grown on (111)-oriented Gd3Ga5O12 (GGG) substrates, which are patterned with stripes of different widths using a Ti mask, by liquid-phase epitaxy to fabricate one-step grown magnetic garnet waveguides. The garnet layers were investigated by scanning electron microscopy, X-ray diffraction measurements, energy-dispersive X-ray analysis and reflection high-energy electron diffraction. The layers grown on Ti-masked regions had a coarse and uneven surface, which is attributed to the damage in the surface of GGG substrates during the growth. The waveguiding experiment indicated that the light waves could be guided within the waveguide with a propagation loss of approximately 0.7 dB/mm.

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