My Note: Recently I reached out to Dr. Mona Jarrahi, at the University of Michigan regarding her cutting edge work using surface plasmons to funnel or guide THz waves. Dr. Jarrahi, was kind enough to answer the inartful questions I asked her. Thank you Dr. Jarrahi!
Q # 1. My blog is currently featuring a video also prepared
in the Terahertz Engineering department at the University of Michigan
Can you tell us, if you work is related to his work, or
have you taken separate roads to each reach your current advances?
Q # 2. Do you see
any synergy, or possible joint applications, or additional developments in your
use of surface plasmon waves in combination with his work?
Answer to Q #1, #2:
The best way I can
differentiate Prof. Sarabandi’s work from ours is that his contributions are
system-level & our contributions are device-level development. We developed
much higher power terahertz sources and much higher sensitivity terahertz
detectors compared to the state of the art that can be used in many imaging and
sensing systems including the system developed by Prof. Sarabandi. In that
sense, our work can be complementary if Prof. Sarabandi decides to operate at
terahertz frequencies.
Q.# 3. Is there work underway in the University of Michigan
Terahertz
Answer to Q #3:
No
Q #4. I asked the preceding question, because you appear to
be using lasers which I (perhaps naively) understood was becoming somewhat
outdated with the development of CMOS technology. Any comment?
Answer to Q #4:
I agree that using
lasers for terahertz generation and detection is an OLD technology, but that
doesn’t make it an OUTDATED technology. For example, transistor technology is a
very old technology but not outdated as higher performance transistors (e.g.
CMOS technology) are still being developed and more applications of transistors
are coming up. Similarly, laser-based systems for terahertz generation and
detection are very capable of offering performances that other technologies
(including CMOS) cannot offer. That’s why, the most successful terahertz
systems that have been commercialized are laser-based ones that offer
sensitivities that other technologies don’t offer. Of course, CMOS technology
offers low-cost, compact, and light-weight solution compared to laser-based
technologies, but not the same performance level that laser-based systems
offer. We should also not forget that the laser technology is very advanced
now, providing compact and low-cost solutions. That’s why any new advancement
in laser-based terahertz devices would have a big impact in the field.
Answer to Q #5:
Yes, we have a
pending patent filed last year
Answer to Q #6:
Yes, we are hoping
to take our technology to the market place, but have not decided about the
logistics yet.
Answer to Q #7:
I don’t have a
definite answer. But in case of partnering with another company with similar
products, adding our technology to existing products would be very fast (a
process of few months).
Answer to Q #8:
Yes,
in another recent work our group has demonstrated the most efficient and most
broadband terahertz intensity modulator based on a special class of
reconfigurable metamaterials. A publication on this work is currently under
review.
Answer to Q #9:
Yes, we are still in
touch & they are also aware of our recent developments.
Answer to Q #10:
That’s true, all of
our devices are room-temperature
Answer to Q #11:
Yes, correct
Hope this helps.
Best Regards,
-Mona
Mona Jarrahi
Assistant Professor
Electrical Engineering & Computer Science Dept.
Address: 3243 EECS
Building
Office # (734) 647 1799
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