Submicron Magneto-Optical Spatial Light Modulation Device for Holographic Displays Driven by Spin-Polarized Electrons

Aoshima, Ken-ichi; Funabashi, Nobuhiko; Machida, Kenji; Miyamoto, Yoshinari; Kimura, Kiyoshi; Ishibashi, Takayuki; Shimidzu, Naoki; Sato, Fumio

doi:10.1109/jdt.2010.2058998

Cited by 49 publications

(25 citation statements)

References 23 publications

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“…Although it is still in its early stages of development with only a single-pixel [23] and one dimensional device having been demonstrated [25], this technology has the potential to display holographic images for 3D movies with wide viewing-zone angles. The device requires a transistor backplane in order to extend its scale, as well as a reduction of switching current because of transistor's limited capability.…”

Section: Magneto Optical Spatial Light Modulator Drivenmentioning

confidence: 99%

Three dimensional motion picture technologies

Aoshima

Kinjo

Machida

et al. 2014

2014 IEEE Industry Application Society Annual Meeting

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We introduce various 3D motion picture technologies, from the commercially available stereogram to a spatial image methods such as holography. We show a magneto optical spatial light modulator with sub-micron pixels driven by spin transfer switching (spin SLM) as a holography display device. It has a potential to solve the long-standing narrow viewing zone issue. We have developed the spin SLM with a transistor back plane which plays an important role for extending large scale. The fabricated spin SLM has 10 × × × × 5 pixels with magnetic tunneling junctions with backplane transistors. We have successfully demonstrated its electrical operation with as low current density as 0.6 MA/cm 2 which is one of the smallest current density with spin transfer switching, and confirmed its contrast change by magnetization switching in light modulation elements. In summary, we have shown that the Spin SLM with backplane transistor technology could be crucial technology to solve the critical issue for the electrical holography.

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Section: Magneto Optical Spatial Light Modulator Drivenmentioning

confidence: 99%

Three dimensional motion picture technologies

Aoshima

Kinjo

Machida

et al. 2014

2014 IEEE Industry Application Society Annual Meeting

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“…Large pixels also cause narrow viewing zone and aliasing noise (overlap of diffraction orders) according to the following relation between viewing angle and pixel pitch

θ = 2 \sin^{- 1} (\frac{λ}{2 p})

where λ is the wavelength and p is the pixel pitch. For an acceptable viewing angle, the pixel pitch should be on the order of the wavelength of light (pixels < 1 µm for visible) . Thus, SLMs with small pixel size, high pixel count, and sufficiently fast to address plenty of pixels in a single image frame, are desired for holography.…”

Section: Introductionmentioning

confidence: 99%

Advanced Materials and Device Architectures for Magnetooptical Spatial Light Modulators

Kharratian

Ürey

Onbaşlı

2019

Advanced Optical Materials

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Faraday and Kerr rotations are magnetooptical (MO) effects used for rotating the polarization of light in transmission and reflection from a magnetized medium, respectively. MO effects combined with intrinsically fast magnetization reversal, which can go down to a few tens of femtoseconds or less, can be applied in magnetooptical spatial light modulators (MOSLMs) promising for nonvolatile, ultrafast, and high‐resolution spatial modulation of light. With the recent progress in low‐power switching of magnetic and MO materials, MOSLMs may lead to major breakthroughs and benefit beyond state‐of‐the‐art holography, data storage, optical communications, heads‐up displays, virtual and augmented reality devices, and solid‐state light detection and ranging (LIDAR). In this study, the recent developments in the growth, processing, and engineering of advanced materials with high MO figures of merit for practical MOSLM devices are reviewed. The challenges with MOSLM functionalities including the intrinsic weakness of MO effect and large power requirement for switching are assessed. The suggested solutions are evaluated, different driving systems are investigated, and resulting device architectures are benchmarked. Finally, the research opportunities on MOSLMs for achieving integrated, high‐contrast, and low‐power devices are presented.

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“…[1][2][3][4][5][6][7][8] A magneto-optical spatial light modulator (MO-SLM) has been investigated [9][10][11][12][13] to realize a holography display with magnetic tunneling junctions (MTJs) in which magnetization reversal is driven by spin-transfer torque (spin-SLM). 10,12,13) An optical-address type MO-SLM has also been studied.…”

Section: Introductionmentioning

confidence: 99%

Current-induced domain-wall motion in patterned nanowires with various Gd–Fe compositions for magneto-optical light modulator applications

Aoshima

Ebisawa

Funabashi

et al. 2018

Jpn. J. Appl. Phys.

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We have fabricated nanowires with various compositions of Gd x -Fe 1%x and evaluated current-induced domain-wall (DW) motion for magnetooptical light modulator application. Successful DW expansion and shrinkage according to the direction of current injection using two nanomagnets aligned in an anti-parallel configuration. The fastest DW velocity was obtained with Gd 22.7 Fe 77.3 , which is slightly Fe richer than the magnetization compensation composition. This composition that gave the highest DW velocity was attributed to the angular momentum compensation composition in Gd-Fe, which is slightly Fe richer than the compensation composition.

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Submicron Magneto-Optical Spatial Light Modulation Device for Holographic Displays Driven by Spin-Polarized Electrons

Cited by 49 publications

References 23 publications

Three dimensional motion picture technologies

Three dimensional motion picture technologies

Advanced Materials and Device Architectures for Magnetooptical Spatial Light Modulators

Current-induced domain-wall motion in patterned nanowires with various Gd–Fe compositions for magneto-optical light modulator applications

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