Feeds

DARPA chips in on Terahertz research

Solid-state receiver hits 850 GHz

Secure remote control for conventional and virtual desktops

The next frontier for solid-state electronics, the Terahertz boundary, has come a little closer with DARPA announcing a receiver operating at 850 GHz.

Currently, receiving and decoding THz signals requires a frequency down-conversion on the way, because nobody’s produced chips that can operate at such high frequencies. Down-conversion, however, limits the operating power of the receiver, and sets an unwanted floor under its signal-to-noise ratio – and adds to the footprint of the receiver.

In this announcement, DARPA says it’s closing in on the THz range, producing a solid state receiver operating at 850 GHz (0.85 THz).

The agency says this development represents a step towards producing monolithic microwave ICs – MMICs to their friends – that can process the very high frequencies involved. It’s part of a two-part program, one focusing on transistors that can handle signal processing, the other developing the necessary power transistors.

DARPA’s own interest includes communications and its see-through-clouds VISAR (video synthetic aperture radar) program, designed to let fighters operate in conditions that currently inhibit current infrared sensors.

THz electronics are also useful for medical imaging (avoiding the side-effects associated with ionizing radiation – such as X-rays), and a range of industrial processes. ®

Remote control for virtualized desktops

More from The Register

next story
Antarctic ice THICKER than first feared – penguin-bot boffins
Robo-sub scans freezing waters, rocks warming models
I'll be back (and forward): Hollywood's time travel tribulations
Quick, call the Time Cops to sort out this paradox!
Your PHONE is slowly KILLING YOU
Doctors find new Digitillnesses - 'text neck' and 'telepressure'
Reuse the Force, Luke: SpaceX's Elon Musk reveals X-WING designs
And a floating carrier for recyclable rockets
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
Rosetta science team thinks Philae might come to life in the spring
And disclose the biggest surprise of Comet 67P
Bond villains lament as Wicked Lasers withdraw death ray
Want to arm that shark? Better get in there quick
prev story

Whitepapers

Driving business with continuous operational intelligence
Introducing an innovative approach offered by ExtraHop for producing continuous operational intelligence.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Why CIOs should rethink endpoint data protection in the age of mobility
Assessing trends in data protection, specifically with respect to mobile devices, BYOD, and remote employees.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Mitigating web security risk with SSL certificates
Web-based systems are essential tools for running business processes and delivering services to customers.