Breaking News
RF & Microwave Designline Blog

Terahertz Thursday: The bleeding edge of research opens up new opportunities

NO RATINGS
View Comments: Newest First | Oldest First | Threaded View
WaveMan0
User Rank
Rookie
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
WaveMan0   6/15/2011 12:08:46 AM
NO RATINGS
It is good to point out that there is much talk about researchers working at THz frequencies, but in actuality, most are working in the mm-wave and sub-THz/sub-mmwave bands (30 GHz to 300 GHz is defined as the mm-wave band, 300 GHz and higher is the sub-mm-wave). The bulk of the research today is below 300 GHz, due to the current availability of test equipment and pricing. Only a small group worldwide are really working at the THz frequencies. Currently, Virginia Diodes (VDI), located where else but Virginia, makes the THz converters for Agilent's Vector Network Analyzers. Most of their business comes from the radio astronomy, JPL and device characterization community. For instance, Northrop-Grumman in SoCal is working with VDI for on-wafer transistor device measurements. I believe NGC has reached record-breaking Ft's of greater than 700 GHz. Some of the popular research at the sub-THz frequencies are for radiometry, atmospheric and space-based imaging, explosives detection and radio astronomy. Due to the naturally occuring resonant frequencies, some very interesting research going on with regards to imaging! I had a chance to attend the THz Conference in May in Tucscon, AZ, and though it was called the "THz Conference," again most of the work was below 600 GHz. @Barry, too bad you couldn't attend the Crab Feast in Baltimore last week...crab cakes were excellent!

Barry.Alcorn
User Rank
Rookie
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
Barry.Alcorn   6/13/2011 7:45:34 PM
NO RATINGS
Currently there are investigations for more narrow band implementations that will allow coverage to 2 THz but there has not been a practical measurement system.

Barry.Alcorn
User Rank
Rookie
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
Barry.Alcorn   6/13/2011 7:44:31 PM
NO RATINGS
On the questions of benefits and costs, much of the work that is being done in the THz region is aimed at improving our safety and security, through the development of high resolution imaging systems as well as through more controlled processes for the development of medication by understanding of the chemical composition. In addition with the development of active components at the higher frequencies there is a growing need for users to better understand the harmonic behavior of the components for a 100 GHz 3rd harmonic behavior will drive the need for at least 325GHz. It is clear that as the technology evolves from a development and usage side the need will drive the cost down.

KB3001
User Rank
CEO
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
KB3001   6/13/2011 6:44:22 PM
NO RATINGS
Reliable and accurate instruments for the generation and measurement of THz signals is indeed the key to serious advances in this exciting field, akin to the transition from Alchemy to Chemistry.

KB3001
User Rank
CEO
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
KB3001   6/13/2011 6:41:29 PM
NO RATINGS
I seem to remember a piece of research suggesting THz radiations can harm human DNA.

old account Frank Eory
User Rank
Rookie
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
old account Frank Eory   6/12/2011 10:19:57 PM
NO RATINGS
I have always been intrigued by the potential to exploit the vast frequency range between electrical (sub-THz) and optical (hundreds of THz) frequency band. These bands will definitely be converging in the coming years and decades, but today they are covered by vastly different engineers and engineering disciplines. At what point does optics meet electonics?

t.alex
User Rank
Rookie
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
t.alex   6/11/2011 3:22:11 PM
NO RATINGS
What is the possible range we can achieve?

agk
User Rank
Rookie
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
agk   6/11/2011 1:23:35 PM
NO RATINGS
Tera hertz waves penerate through lot of materials without any destruction. So this is being tried in many applications like security systems,biomedical,pharma,semiconductor and not but the least broad band communications.

t.alex
User Rank
Rookie
re: Terahertz Thursday: The bleeding edge of research opens up new opportunities
t.alex   6/11/2011 12:47:08 PM
NO RATINGS
Simple question: what are the benefits and costs we have going towards terahertz?

More Blogs from RF & Microwave Designline Blog
I love Bluetooth. Little did I know, seventeen years ago when I was assigned my first project to write about the origins of Bluetooth and the viking that inspired the name that it would bring so much joy and convenience to my life
The main point of this blog is to point out that there is a major shift in LDMOS technology for cellular applications and the device operating voltage is changing from the current 28V range up into the 48V region.
Last week, JEDEC announced a new standard for wide I/O mobile DRAM: JESD229 Wide I/O Single Data Rate (SDR).
According to the opinion-site SodaHead.com, the iPhone 4S is the best new gadget of 2011.
I just heard from Mobile Future about a video they made summarizing the 2011 top statistics in mobile
Top Comments of the Week
August Cartoon Caption Winner!
August Cartoon Caption Winner!
"All the King's horses and all the KIng's men gave up on Humpty, so they handed the problem off to Engineering."
5 comments
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Radio
LATEST ARCHIVED BROADCAST
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.
Flash Poll