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Vol 48, No 15, 19 July 2012

  • Russel Dobson (left), Ruiheng Wu and Peter Callaghan

    Inside view

    Russel Dobson from the University of Greenwich tells us more about his group’s research in non-invasive blood testing.

  • Three main sections of the prototype wirelessly powered capsule

    Off-board power

    New receiving circuit for increased wireless power in capsule endoscopy.

  • Hamit Soyel

    Interview with Hamit Soyel

    Dr Hamit Soyel from Queen Mary University of London in the UK talks about the research behind his Letter Automatic image enhancement using intrinsic geometrical information.

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2013 Electronics Letters Premium Award Paper

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Electronic Letters vol 46 issue 1 - cover

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Also in this issue

  • Measured self-heterodyne spectrum

    High yield

    Researchers in Ireland have developed a laser structure that removes any yield problems associated with cleaving. Their design only needs a single wafer growth, can be fabricated by standard photolithography, and is inherently monolithically integrable with other devices such as modulators and passive optical circuits.

  • Photograph of the circuits with a solar cell

    Sustained power

    A light energy scavenging system has been presented by researchers in Korea, which employs a MEMS switch as the gate driver of a MOSFET in a power management circuit. The work offers potential for realizing practical self-sustaining wireless devices, and is the first application of a MEMS switch as a power control component.

  • Illustration of the ZnO device

    Switching converters

    Researchers in Japan have fabricated self-switching devices using ZnO thin films for the first time. The device demonstrates half-wave rectification and can be used in ZnO-based rectifying systems, which can then be applied to AC–DC power converters or flywheel diodes.

  • Photographs of the fabricated UTC-PD and SBD detector layout

    Short sharp link

    A terahertz-wave wireless link operating at 300 GHz with potential for use in future ultra-fast, short-range wireless services is shown in work from Japan. A unitravelling carrier photodiode emitter and Schottky barrier diode detector were designed and fabricated for increased bandwidth and a 24 Gbit/s amplitude shift keying signal was successfully transmitted over a distance of 50 cm with no error.

  • Photograph of the microfibre MZI with red laser injected

    Warming currents

    A microfibre Mach-Zehnder interferometer (MZI) structure capable of sensing current changes from 0 A up to 2.5 A with constant fixed wavelength shift in a linear increment pattern is presented in work from Malaysia. The design uses thermally induced optical phase shift, as the heat generated by the flowing current in the wire affects the refractive index of the microfibre.

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Cover of Electronics Letters, volume 50, issue 25

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