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Vol 48, No 15, 19 July 2012
What's new?
Follow us on Twitter
Electronics Letters is now on Twitter! Follow @ElecLett for the latest news and highlights from each issue!
Open Access
Electronics Letters, along with all IET journals, now offers authors the option to publish their paper open access.
Past Issues
Past issues
See feature articles and interviews from recent issues of Electronics Letters.
To access the full content of all past issues please visit the IET Digital Library.
Special issue
Semiconductors in Personalised Medicine
A special supplement to Electronics Letters that reflects on the growth of semiconductors as the enabling technology to help with some of the global healthcare challenges that we face today.
Also in this issue
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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.
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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.
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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.
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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.
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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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