Holovideo for everyone: a low-cost holovideo monitor

Smalley, Daniel; Smithwick, Quinn; Barabas, James; Bove, V. Michael; Jolly, Sundeep; DellaSilva, C

doi:10.1088/1742-6596/415/1/012055

Cited by 13 publications

(9 citation statements)

References 1 publication

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“…Our group has previously developed a holographic video display based on space-multiplexed, guided-wave acousto-optic spatial light modulation capable of transparent or opaque viewing operation. 1,2 This previous work demonstrated that guided-wave devices based on proton-exchanged lithium niobate can not only be used for inexpensive holographic displays, but also exhibit polarization rotation, allowing noise and undiffracted light to be eliminated with a polarizer, and wavelength division multiplexing, allowing simultaneous red, green, and blue illumination without color filters or spatial/temporal multiplexing.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of waveguide spatial light modulators via femtosecond laser micromachining

et al. 2016

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We have previously introduced an anisotropic leaky-mode modulator as a waveguide-based, acousto-optic solution for spatial light modulation in holographic video display systems. Waveguide fabrication for these and similar surface acoustic wave devices relies on proton exchange of a lithium niobate substrate, which involves the immersion of the substrate in an acid melt. While simple and effective, waveguide depth and index profiles resulting from proton exchange are often non-uniform over the device length or inconsistent between waveguides fabricated at different times using the same melt and annealing parameters. In contrast to proton exchange, direct writing of waveguides has the appeal of simplifying fabrication (as these methods are inherently maskless) and the potential of fine and consistent control over waveguide depth and index profiles. In this paper, we explore femtosecond laser micromachining as an alternative to proton exchange in the fabrication of waveguides for anisotropic leaky-mode modulators.

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Section: Introductionmentioning

confidence: 99%

Fabrication of waveguide spatial light modulators via femtosecond laser micromachining

et al. 2016

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“…The larger the number of channels in the modulator, the greater the total available pixel bandwidth available to the display system to be used for increased resolution, frame rate, output angle, or other parameters. 5 Anisotropic leaky mode modulators can be fabricated inexpensively and possess channels that are ten times more densely packed than existing holographic displays. 6 devices exhibit larger angular deflections, polarization rotation of signal light, and frequency division multiplexing of color.…”

Section: Introductionmentioning

confidence: 99%

Frequency division color characterization apparatus for anisotropic leaky mode light modulators

Henrie

Haymore

Smalley

2015

Review of Scientific Instruments

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This paper presents an optical apparatus for characterizing frequency multiplexing of color in leaky mode, anisotropic waveguide modulators. This type of characterization is particularly useful for informing the design of full color holographic video displays. The primary function of the apparatus is to map the frequency response and angular overlap of red, green, and blue outputs. The apparatus also allows measurements of other parameters such as scan center frequency, optical and RF bandwidth, and scan linearity.

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“…1). Bulk wave modulators avoid the artifacts of pixelated modulators because they are analog devices without fixed pixel structure; 7 however, they are expensive to fabricate as they do not lend themselves to wafer-based batch fabrication processes. 8 Leaky-mode modulators are similar to Bragg cells in that they are analog devices, so they also avoid pixel artifacts.…”

Section: Introductionmentioning

confidence: 99%

Progress on characterization and optimization of leaky-mode modulators for holographic video

Smalley

McLaughlin

Leach

et al. 2015

J. Micro/Nanolith. MEMS MOEMS

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Abstract. We give a summary of the progress we have made in the fabrication of guided wave devices for use in holographic video displays. This progress includes identifying anisotropic leaky-mode modulators as a platform for holographic display, the development of a characterization apparatus to extract key parameters from leaky-mode devices, and the identification of optimized waveguide parameters for frequency-controlled color display.

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Holovideo for everyone: a low-cost holovideo monitor

Cited by 13 publications

References 1 publication

Fabrication of waveguide spatial light modulators via femtosecond laser micromachining

Fabrication of waveguide spatial light modulators via femtosecond laser micromachining

Frequency division color characterization apparatus for anisotropic leaky mode light modulators

Progress on characterization and optimization of leaky-mode modulators for holographic video

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