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Showing 1–5 of 5 results
Advanced filters: Author: Houk Jang Clear advanced filters

  • A network of dual-gate silicon p–i–n photodiodes, which are compatible with complementary metal–oxide–semiconductor fabrication processes, can perform in-sensor image processing by being electrically programmed into convolutional filters.

    • Houk Jang
    • Henry Hinton
    • Donhee Ham
    Research
    Nature Electronics
    Volume: 5, P: 519-525

  • High-performance, transparent and stretchable electrodes are in demand for the development of flexible electronic and optoelectronic applications. Graphene is a candidate as the basis material, because of its excellent optical, electrical and mechanical properties. This paper describes a technique to grow centimetre-scale films using chemical vapour deposition on nickel films and a method to pattern and transfer the films to arbitrary substrates. The electrical conductance and optical transparency are as high as those for microscale graphene films.

    • Keun Soo Kim
    • Yue Zhao
    • Byung Hee Hong
    Research
    Nature
    Volume: 457, P: 706-710

  • Curvature of image sensors that match the focal plane of the lens facilitate focussing but can cause image distortion. Here, an anti-distortion single-lens camera was developed using a curved image sensor with a photo-pixel distribution pattern warped like image warping to correctively reverse distortion.

    • Changsoon Choi
    • Henry Hinton
    • Donhee Ham
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • For optical control of plasmons metals require a large amount of power in the control pulse, yielding a small modulation depth. Here, Sim et al. fabricate arrays of Bi2Se3 and report a modulation depth of 2,400% at 1.5 THz with an optical fluence of 45 μJ/cm2, demonstrating a novel route for controlling plasmons.

    • Sangwan Sim
    • Houk Jang
    • Hyunyong Choi
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7