Breaking News
News & Analysis

IBM demos terahertz graphene photonics

4/22/2012 05:01 PM EDT
4 comments
NO RATINGS
More Related Links
View Comments: Threaded | Newest First | Oldest First
R_Colin_Johnson
User Rank
Blogger
re: IBM demos terahertz graphene photonics
R_Colin_Johnson   4/23/2012 10:58:30 AM
NO RATINGS
Graphene promises to be revolutionize semiconductors by offering order of magnitude speed-ups, ultra-low power and easier scalability to smaller and smaller sizes. Now it seems that on-chip optical processing is yet another attibute of future carbon-based chips. Another thing that IBM revealed to me during interviews, but which is not explicityly stated in these research results, is that they appear to have solved the wafer-scale fabrication problems that were plaguing development efforts until now. Semiconducor fabs will still be reluctant to switch over quickly to carbon-based materials, as long as they can still eek out yet more performance from silicon, but it carbon-based semiconductors that combine electrical and optical processing are starting to appear inevitable eventually.

agk
User Rank
Rookie
re: IBM demos terahertz graphene photonics
agk   4/23/2012 1:13:48 PM
NO RATINGS
Tunable notch filters are very much used every where and now IBM doing it at tera hertz frequencies will open up newer communication techniques in future.These nano technology research seems to be quite interesting.

linpaws
User Rank
Rookie
re: IBM demos terahertz graphene photonics
linpaws   4/24/2012 5:03:06 AM
NO RATINGS
Graphene, inspite of all it's promises from electrical standpoint, is still doubtful from material standpoint. I am not sure what kind of lab conditions were these tests carried out. It'd be interesting to see how it withstands PVT stress tests as today's Si wafers go through with the level of doping concentrations.

wilber_xbox
User Rank
Manager
re: IBM demos terahertz graphene photonics
wilber_xbox   4/26/2012 4:43:35 PM
NO RATINGS
Graphene surely has potential from research point of view, however integration with the Si will be challenge. Material wise it is cheap but from practical purpose the problem might arise.

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
Top Comments of the Week
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
Flash Poll
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.