UV modulation by twisting crystal films

Films of the two-dimensional material hexagonal boron nitride can be used to control light emission from materials, according to the Singapore-MIT Alliance for Research and Technology (Smart). The phenomenon involves the creation of ‘Moiré superlattices’ as two films are rotated with respect to one-another, and works at room temperature with films made from stacks of atoms around 100nm ...

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Particle physics maths rescues laser array mode locking

How can anyone persuade an array of lasers to emit a single-mode coherent beam? was the question being asked by a team of US researchers. “One seemingly straightforward method to achieve a high-power single-mode laser is to couple multiple identical single-mode lasers together to form a laser array,” said University of Pennsylvania scientist Liang Feng. ...

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Skyworks buys auto unit from Si Labs

Skyworks is to buy the Infrastructure and Automotive business of  Silicon Labs in a deal  valued at $2.75 billion. The acquisition includes the technology portfolios and related assets of Silicon Labs’ power/isolation, timing, and broadcast product lines, which are highly complementary to Skyworks’ connectivity portfolio. The acquisition will accelerate Skyworks’ expansion into the industry’s most ...

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China has grappling satellite, says US general

China has a grappling satellite which can grab a satellite with a robotic arm and disable it, said US Space Command commander General James Dickinson in a submission to  Congress earlier this week. “Beijing actively seeks space superiority through space and space attack systems,” Dickinson told the Senate Armed Services Committee, “one notable object is ...

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Chips and Cars

Car companies which have announced temporary halts on production because of chip shortages include Volkswagen, Toyota, General Motors, Ford, Nissan, Honda, Suzuki, Mitsubishi, Daimler (Mercedes) and Stellantis (merger of Fiat-Chrysler), writes Bill Jewell’s Semiconductor Intelligence. IHS Markit estimates 1Q 2021 light vehicle production was reduced by 1.3 million units due to the shortage. They stated ...

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Google releases Developer Preview 3 of Android 12

Google has made Developer Preview 3 available for the next major release of Android, version 12, which is due to appear before the end of the year. Note that the only devices that can run the preview are Google’s own Pixel 3, 3a, 4, 4a, 4a (5G), or 5. As always for these developer-only releases, ...

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Infineon adds EiceDRIVERs

Infineon  has expanded its EiceDRIVER X3 Compact (1ED31xx) and the X3 Enhanced Analog (1ED34xx) and Digital (1ED38xx) gate driver families. Both families now offer variants with superior reinforced isolation for higher application safety and long operating life. The new family members are VDE 0884-11 certified. With 8 mm wide-body packages, both families are suitable for ...

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Harwin adds to spring contacts

Harwin has expanded its range of spring contacts with the addition of two further versions. These new surface mount components are capable of supporting both horizontal and vertical connection orientations, but come in smaller size formats than were previously available. The S1961-46R has a 3.55mm height, while the S1971-46R has a height of 4.55mm. Although ...

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