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Research Output 1994 2019

  • 675 Citations
  • 10 h-Index
  • 62 Article
  • 48 Conference contribution
  • 1 Chapter
  • 1 Paper
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Article
2018

Photosensitive adhesive bonding process of magnetooptic waveguides with Si guiding layer for optical nonreciprocal devices

Choowitsakunlert, S., Takagiwa, K., Kobashigawa, T., Hosoya, N., Silapunt, R. & Yokoi, H., 2018 May 1, In : Japanese Journal of Applied Physics. 57, 5, 058007.

Research output: Contribution to journalArticle

adhesive bonding
Magnetooptical effects
Optical devices
Adhesives
Waveguides

Temperature-insensitive design of waveguide isolator employing nonreciprocal guided-radiation mode conversion

Choowitsakunlert, S., Kobashigawa, T., Hosoya, N., Silapunt, R. & Yokoi, H., 2018 Nov 1, In : Japanese Journal of Applied Physics. 57, 11, 112201.

Research output: Contribution to journalArticle

Waveguide isolators
isolators
Waveguides
waveguides
Radiation
2017

A 1D study of antiferromagnetic operated on multiferroic composites in nano read head

Choowitsakunlert, S., Silapunt, R. & Yokoi, H., 2017 Mar 2, (Accepted/In press) In : Microsystem Technologies. p. 1-5 5 p.

Research output: Contribution to journalArticle

Antiferromagnetic materials
Magnetoelectric effects
Composite structures
Ferroelectric materials
Magnetic fields
12 Citations (Scopus)

Amorphous-Si waveguide on a garnet magneto-optical isolator with a TE mode nonreciprocal phase shift

Ishida, E., Miura, K., Shoji, Y., Yokoi, H., Mizumoto, T., Nishiyama, N. & Arai, S., 2017 Jan 9, In : Optics Express. 25, 1, p. 452-462 11 p.

Research output: Contribution to journalArticle

isolators
garnets
phase shift
waveguides
directional couplers
2015
1 Citation (Scopus)

Design of polarization rotators in TE-TM mode conversion optical isolator with Ce: YIG guiding layer

Okada, Y., Tamura, D., Kobayashi, K. & Yokoi, H., 2015 Sep 1, In : Japanese Journal of Applied Physics. 54, 9, 092202.

Research output: Contribution to journalArticle

isolators
yttrium-iron garnet
Polarization
polarization
converters
2011
2 Citations (Scopus)

Design of optical isolator with sputter-deposited Si layer employing nonreciprocal radiation-mode conversion

Yokoi, H., Yamaguchi, K. & Uchiumi, Y., 2011 Jul, In : Japanese Journal of Applied Physics. 50, 7 PART 1, 078001.

Research output: Contribution to journalArticle

Magnetooptical effects
isolators
Garnets
Waveguides
Radiation

Design of optical isolator with sputter-deposited Si layer employing nonreciprocal radiaton-mode conversion

Yokoi, H., Yamaguchi, K. & Uchiumi, Y., 2011 Jul 20, In : Japanese Journal of Applied Physics. 50, p. 078001-1-078001-2

Research output: Contribution to journalArticle

Design of optical triplexer with cascaded mulit-mode interference couplers

Ikeya, S., Yokoi, H., Kawasaki, T. & Hoshi, T., 2011 Sep 5, In : 11th International Conf. on Numerical Simulation of Optoelectronic Devices.

Research output: Contribution to journalArticle

Garnet photonics toward developing laser diode integrated with optical isolator with Si guiding layer

Yokoi, H., Igarashi, S., Uchiumi, Y. & Tani, K., 2011 Mar, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 8, 3, p. 1071-1074 4 p.

Research output: Contribution to journalArticle

isolators
garnets
magneto-optics
semiconductor lasers
photonics
2010

Design of optical isolator with TiO2 / (CeY)3Fe5O12 guiding layer

Yokoi, H., Ikeya, S. & Imada, T., 2010 Nov 30, In : Technial Digest on Materials Research Society’s 2010 Fall Meeting.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Interferometric optical isolator with air/Si/magnetic-garnet waveguide operated in unidirectional magnetic field

Yokoi, H., Igarashi, S. & Uchiumi, Y., 2010 May, In : Japanese Journal of Applied Physics. 49, 5 PART 1, p. 580021-580022 2 p.

Research output: Contribution to journalArticle

isolators
Garnets
garnets
Waveguides
Magnetic fields
2009
10 Citations (Scopus)

Sputter-Deposited Si layer for optical isolator with si guiding layer

Yokoi, H., Sasaki, K. & Aiba, T., 2009 Jun, In : Japanese Journal of Applied Physics. 48, 6, 062202.

Research output: Contribution to journalArticle

isolators
Garnets
garnets
Phase shift
Magnetooptical effects
2008
16 Citations (Scopus)

Calculation of nonreciprocal phase shift in magneto-optic waveguides with Ce: YIG layer

Yokoi, H., 2008 Oct, In : Optical Materials. 31, 2, p. 189-192 4 p.

Research output: Contribution to journalArticle

Magnetooptical effects
yttrium-iron garnet
magneto-optics
Phase shift
Waveguides

Calculation of nonreciprocal phase shift in magneto-optic waveguides with Ce:YIG layer

Yokoi, H., 2008 Dec 1, In : Optical Materials. 31, p. 189-192

Research output: Contribution to journalArticle

213 Citations (Scopus)

Magneto-optical isolator with silicon waveguides fabricated by direct bonding

Shoji, Y., Mizumoto, T., Yokoi, H., Hsieh, I. W. & Osgood, R. M., 2008, In : Applied Physics Letters. 92, 7, 071117.

Research output: Contribution to journalArticle

isolators
phase shift
waveguides
yttrium-iron garnet
magneto-optics

Optical isolator with TiO2/magnetic garnet waveguide employing nonreciprocal phase shift

Yokoi, H., Kono, H., Sekine, K., Shoji, Y. & Mizumoto, T., 2008, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 5, 10, p. 3373-3375 3 p.

Research output: Contribution to journalArticle

isolators
garnets
phase shift
magneto-optics
waveguides

Optical isolator with TiO2/magnetic garnet waveguide employing nonreciprocal phase shift

Yokoi, H., 2008 Jun 1, In : Physica Status Solidi. 5, p. 3373-3375

Research output: Contribution to journalArticle

2 Citations (Scopus)

UV-activated bonding between magnetic garnet and Si for optical isolator with Si guiding layer

Yokoi, H. & Sasaki, K., 2008 Oct 14, In : Electrochem. Soc. Trans.. 16, p. 155-161

Research output: Contribution to journalArticle

2007
isolators
Phase shifters
Interferometers
elimination
interferometers
2006

Coupling characteristics of three-guide tapered coupler for optical isolator with Si guiding layer

Yokoi, H., Shoji, Y., Suzuki, T., Nishimura, N. & Mizumoto, T., 2006 Aug 4, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 45, 8 A, p. 6323-6325 3 p.

Research output: Contribution to journalArticle

isolators
Phase shift
couplers
phase shift
1 Citation (Scopus)

Interferometric optical isolator with Si guiding layer fabricated by wafer bonding

Yokoi, H., 2006 Dec, In : Journal of Luminescence. 121, 2 SPEC. ISS., p. 391-393 3 p.

Research output: Contribution to journalArticle

Wafer bonding
Magnetooptical effects
isolators
magneto-optics
Waveguides
1 Citation (Scopus)
isolators
Garnets
Phase shift
Interferometers
garnets

Mach-Zehnder interferometer with Si wire waveguides for ultracompact optical isolator

Shoji, Y., Yokoi, H. & Mizumoto, T., 2005 Oct 31, In : Technical Digest on 11th Microoptics Conference.

Research output: Contribution to journalArticle

3 Citations (Scopus)
isolators
Garnets
garnets
Waveguides
Magnetooptical effects
2004
8 Citations (Scopus)
Magnetooptical effects
Phase shift
Waveguides
phase shift
waveguides

Demonstration of interferometric optical isolator operated under unidirectional magnetic field

Yokoi, H., Shoji, Y., Shin, E. & Mizumoto, T., 2004 Jul 13, In : Technical Digest on OECC/COIN 2004. p. 362-363

Research output: Contribution to journalArticle

1 Citation (Scopus)
Magnetooptical effects
isolators
magneto-optics
Refractive index
Waveguides
2 Citations (Scopus)

Fabrication of semiconductor laser for integration with optical isolator

Sakurai, K., Yokoi, H., Mizumoto, T., Miyashita, D. & Nakano, Y., 2004 Apr, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 43, 4 A, p. 1388-1392 5 p.

Research output: Contribution to journalArticle

isolators
Semiconductor lasers
semiconductor lasers
Fabrication
fabrication
2 Citations (Scopus)

Fabrication of semiconductor laser for integration with optical isolator

Sakurai, K., Yokoi, H., Mizumoto, T., Miyashita, D. & Nakano, Y., 2004 Apr 1, In : Japanese Journal of Applied Physics. 43, p. 1388-1392

Research output: Contribution to journalArticle

10 Citations (Scopus)

Interferometric optical isolator employing a nonreciprocal phase shift operated in a unidirectional magnetic field

Yokoi, H., Shoji, Y., Shin, E. & Mizumoto, T., 2004 Aug 20, In : Applied Optics. 43, 24, p. 4745-4752 8 p.

Research output: Contribution to journalArticle

isolators
Phase shift
phase shift
Magnetic fields
Phase shifters
3 Citations (Scopus)
isolators
couplers
Magnetic fields
Beam propagation method
interference
2003

Mode conversion optical isolator fabricated by wafer bonding

Hideki, H., Yokoi, Y., Mizumoto, T. & Iwasaki, H., 2003 Apr 30, In : The Electrochemical Society.

Research output: Contribution to journalArticle

64 Citations (Scopus)

Optical nonreciprocal devices with a silicon guiding layer fabricated by wafer bonding

Yokoi, H., Mizumoto, T. & Shoji, Y., 2003 Nov 20, In : Applied Optics. 42, 33, p. 6605-6612 8 p.

Research output: Contribution to journalArticle

Wafer bonding
Optical devices
Magnetooptical effects
Garnets
magneto-optics

Optical nonreciprocal devices with a silicon guiding layer fabricated by wafer bounding.

Yokoi, H., Mizumoto, T. & Shoji, Y., 2003 Nov 20, In : Applied Optics. 42, p. 6605-6612

Research output: Contribution to journalArticle

2 Citations (Scopus)

Surface Micromachining in Optical Isolator with Semiconductor Guiding Layer for Enhancement of Magnetooptic Effect

Yokoi, H., Mizumoto, T., Sakai, T., Ohtsuka, T. & Nakano, Y., 2003 Aug, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 42, 8, p. 5094-5097 4 p.

Research output: Contribution to journalArticle

Surface micromachining
Magnetooptical effects
isolators
micromachining
Waveguides
2002
3 Citations (Scopus)

Elimination of a back-reflected TE mode in a TM-mode optical isolator with a Mach-Zehnder interferometer

Yokoi, H., Mizumoto, T., Kuroda, S., Ohtsuka, T. & Nakano, Y., 2002 Nov 20, In : Applied Optics. 41, 33, p. 7045-7051 7 p.

Research output: Contribution to journalArticle

Mach-Zehnder interferometers
isolators
Phase shifters
elimination
Phase shift
11 Citations (Scopus)

Nonreciprocal TE-TM mode converter with semiconductor guiding layer

Yokoi, H., Mizumoto, T. & Iwasaki, H., 2002 Dec 5, In : Electronics Letters. 38, 25, p. 1670-1672 3 p.

Research output: Contribution to journalArticle

Semiconductor materials
Garnets
Air
Waveguides
Oxides
2001
2 Citations (Scopus)

Integration of terraced laser diode and garnet crystals by wafer direct bonding

Yokoi, H., Waniishi, T., Mizumoto, T., Shimizu, M., Sakurai, K., Futakuchi, N. & Nakano, Y., 2001 May, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 40, 5 A, p. 3463-3467 5 p.

Research output: Contribution to journalArticle

Garnets
garnets
Semiconductor lasers
semiconductor lasers
wafers
6 Citations (Scopus)

Selective oxidation for enhancement of magneto-optic effect in optical isolator with semiconductor guiding layer

Yokoi, H., Mizumoto, T., Masaki, H., Futakuchi, N., Ohtsuka, T. & Nakano, Y., 2001 Feb 15, In : Electronics Letters. 37, 4, p. 240-241 2 p.

Research output: Contribution to journalArticle

Magnetooptical effects
Waveguides
Semiconductor materials
Oxidation
Phase shifters
2000
120 Citations (Scopus)

Demonstration of an optical isolator with a semiconductor guiding layer that was obtained by use of a nonreciprocal phase shift

Yokoi, H., Mizumoto, T., Shinjo, N., Futakuchi, N. & Nakano, Y., 2000 Nov 20, In : Applied Optics. 39, 33, p. 6158-6164 7 p.

Research output: Contribution to journalArticle

isolators
Phase shifters
Phase shift
phase shift
Demonstrations
1999
21 Citations (Scopus)

Analysis of GaInAsP surfaces by contact-angle measurement for wafer direct bonding with garnet crystals

Yokoi, H., Mizumoto, T., Shimizu, M., Waniishi, T., Futakuchi, N., Kaida, N. & Nakano, Y., 1999 Aug 15, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 38, 8 B, p. 4780-4783 4 p.

Research output: Contribution to journalArticle

Garnets
Angle measurement
garnets
Contact angle
wafers

Contact angle measurement of wafer surfaces for integrating laser diode and optical isolator by wafer bonding

Yokoi, H., Mizumoto, T., Shimizu, M., Waniishi, T., Futakuchi, N., Kaida, N. & Nakano, Y., 1999 Oct 19, In : The Electrochemical Society.

Research output: Contribution to journalArticle

39 Citations (Scopus)

Demonstration of an optical isolator by use of a nonreciprocal phase shift

Yokoi, H., Mizumoto, T., Takano, T. & Shinjo, N., 1999 Dec 20, In : Applied Optics. 38, 36, p. 7409-7413 5 p.

Research output: Contribution to journalArticle

isolators
Phase shift
phase shift
Demonstrations
Phase shifters
7 Citations (Scopus)

Direct bonding between quaternary compound semiconductor and garnet crystals for integrated optical isolator

Yokoi, H., Mizumoto, T., Shimizu, M., Futakuchi, N., Kaida, N. & Nakano, Y., 1999, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 38, 1, p. 195-197 3 p.

Research output: Contribution to journalArticle

isolators
Garnets
garnets
Semiconductor materials
Phase shift
9 Citations (Scopus)

Feasibility of integrated optical isolator with semiconductor guiding layer fabricated by wafer direct bonding

Yokoi, H., Mizumoto, T., Shinjo, N., Futakuchi, N., Kaida, N. & Nakano, Y., 1999, In : IEE Proceedings: Optoelectronics. 146, 2, p. 105-110 6 p.

Research output: Contribution to journalArticle

isolators
Phase shifters
wafers
Semiconductor materials
Magnetooptical effects