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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 7 — Apr. 1, 2010
  • pp: 931–933

Magnetization-dependent loss in an (Al,Ga)As optical waveguide with an embedded Fe micromagnet

V. Zayets, H. Saito, S. Yuasa, and K. Ando  »View Author Affiliations


Optics Letters, Vol. 35, Issue 7, pp. 931-933 (2010)
http://dx.doi.org/10.1364/OL.35.000931


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Abstract

The dependence of waveguiding loss on the magnetization of a Fe micromagnet embedded into the (Al,Ga)As optical waveguide was examined as a possible readout method for the spin-photon memory. The optical detection of the magnetization direction of a Fe micromagnet was demonstrated for the micromagnet sizes of 3 μ m × 4 μ m and 3 μ m × 8 μ m with signal-to-noise ratios of 4.8 and 6 dB, respectively. In the case of smaller sizes, the use of spin injection from the micromagnet into a semiconductor optical amplifier was proposed for the optical detection of the magnetization.

© 2010 Optical Society of America

OCIS Codes
(210.3810) Optical data storage : Magneto-optic systems
(210.4680) Optical data storage : Optical memories
(230.2240) Optical devices : Faraday effect
(320.7085) Ultrafast optics : Ultrafast information processing

ToC Category:
Integrated Optics

History
Original Manuscript: November 6, 2009
Revised Manuscript: January 31, 2010
Manuscript Accepted: February 4, 2010
Published: March 19, 2010

Citation
V. Zayets, H. Saito, S. Yuasa, and K. Ando, "Magnetization-dependent loss in an (Al,Ga)As optical waveguide with an embedded Fe micromagnet," Opt. Lett. 35, 931-933 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-7-931

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