Tuesday, December 13, 2022
Tuesday, May 17, 2022
The long-awaited true commercial breakthrough for THZ has just been realized at LUNA Innovations (Congratulations to Steve Williamson and Irl Duling)
I first read about terahertz in a 2005 publication of Popular Science and marveled at the many wonders and technological advances which were promised by the then "virgin" technology. It was sheer coincidence but also my good fortune that a small photonics company I had invested in called Advanced Photonix, (API), shortly thereafter in March of 2005 acquired the Bell-labs, University of Michigan, spin-off called Picometrix which held a large number of the existing patents on terahertz. Picometrix and the patents it held was the brainchild and largely due to the genius & vision of Steve Williamson as well as the technical genius of Irl Duling.
It seems to me based on what I've learned this week that Luna and terahertz as a viable technology, has finally moved to the slope of enlightenment on the Gartner technology curve, and appears headed on a long upward slope for some time to come:
Earlier this week, I listened to the Luna Innovations, 1st Quarter Financial Report. Wow! Luna really seems to have finally "hit the home-run", and it's THz division is a big contributor to the companies significant progress (which amazingly) is occurring in the midst of the overall economic turmoil of COVID, supply chain issues, global inflation and war in Ukraine. You can listen to the conference on the Luna investors relations page, or you can read a transcript here:
I'd like to point readers to some of the highlights focusing on the THz discussions (however the wins are really across the entire sensing technology line of products).
Big congratulations to Scott Graeff and the Luna team.
Scott Graeff: "In addition, with respect to our pipeline and backlog across nearly all businesses, it was what our COO, Brian Soller characterized as a knockout quarter. As an example, for our terahertz products, our order backlog is no longer the typical 14-week lead time, but instead we are booked through year end 2022, due to the rapid increase in demand for these products.
Brian Soller: "If you remember, when we sold the Picometrix business to MACOM back in 2017, we held on to that terahertz piece of that business out in Ann Arbor and folks like Steve Williamson, who were key and instrumental, we just felt like it was being starved a little bit. And so we invested some money into that because when we would talk to customers who were using the terahertz system, they were overwhelmed. They thought it was the greatest thing ever. And it just took some time to get some processes in place and to engineer out some things or the laser and do some things. And sure enough, those investments are paying off in spades now.
Tuesday, April 26, 2022
Luna Innovations : Cutting Edge Developments in Terahertz and Electric Batteries for Vehicles (who said I wasn't still alive?)
Good morning. It's been a long time since I have made a post here on Terahertztechnology.blogspot. but I'm briefly coming out of posting "retirement" to post about the exciting developments Luna Innovations is making in the area of electric batteries for vehicles using terahertz.
It's my understanding Luna has made some cutting edge discoveries and breakthroughs in electric battery manufacture for improved battery quality control / performance both in the lab as well as in the field. Nobody else has developed similar technology to my layman's understanding, (but do your own due diligence in this regard. )
This work comes out of the labs of Irl Duling and the scientists working with him in Ann Arbor, who remain at the forefront of the commercialization of terahertz technologies
These improvements are found in thermal mapping of electric batteries, which vastly improves the ability to detect rapid temperature increases and thermal runaway events.
This is an area Luna has quietly been developing for several years and it appears the technology is now blossoming.
Another major area of Luna's expertise with electrical batteries is in the area of improvements in battery pack structural improvement. Dielectic and small fiber optic sensors developed by Luna are now able to provide new and improved measurement capabilities which are essential to improved design and manufacturing process optimization.
Friday, September 10, 2021
Vaisshale Rathinasamy, Rama Rao Thipparaju, Nisha Flora Boby Edwin, Shyamal Mondal,
Recently, the technology buzz on utilization of terahertz (THz) technology in beyond 5G and 6G communication is growing due to the demands for large network capacity, bandwidth, and ultrahigh data rates. The THz frequencies are prudent for short-range future wireless communication systems as they provide extraordinary channel capacity with data rates from few Gb/s to Tb/s due to its ultra-wide spectrum bandwidth. However, there exists many challenges in designing devices that operate under THz frequencies. The photo-conductive antenna (PCA) is one of the crucial components that support realization of ultrafast wireless THz communications. In this paper, investigations on photoconductive antennas with interdigitated electrodes (IDEs) have been presented for THz communications with an equivalent circuit model for IPCA with corresponding solved expressions. The results show that the maximum THz field strength of 4.41 × 10 V/m is achievable by a 10 μm interdigitated teeth length IPCA with larger spectrum bandwidth of about ~8 THz. The antenna module makes the possibility of miniaturization of the THz sources and detectors for the emerging variety of wireless THz applications.
Thursday, September 9, 2021
Abstract-Characterizing the Layer Structures of the Lacquerware From the Palace Museum by Terahertz Imaging in Reflection Geometry
Hongfei Zhang, Yuanmeng Zhao, Chenyu Li, Cunlin Zhang
Chinese lacquerware is an important invention of arts and crafts in China. In this study, Chinese lacquerware is characterized using terahertz reflectometric imaging. The lacquerware studied herein comprises an ornamental wood panel covered by multiple layers of lacquers to portray motifs. For characterizing lacquerware, a terahertz time-domain spectroscopic reflectometric imaging system is proposed. The role of the proposed terahertz imaging system in highlighting the interface between layers during stratigraphic buildup in reflection geometry is proved. The proposed system provides a universal method for assessing the structural information of lacquered objects in a contactless and non-invasive manner; moreover, it provides two-dimensional images, subsurface three-dimensional images, and stratigraphic images (b-scans) in a contactless and non-invasive manner. Using the proposed system, we examine the buried layers of the lacquerware, including faults in the wooden layer and damages in the lacquerware. Research shows the promising prospects of terahertz time-domain spectroscopic reflectometric imaging as a non-destructive detection technique suited to lacquerware.
Wednesday, September 8, 2021
Abstract-Multiple interference theoretical model for graphene metamaterial-based tunable broadband terahertz linear polarization converter design and optimization
Rong Lin, Fake Lu, Xiaoliang He, Zhilong Jiang, Cheng Liu, Shouyu Wang, and Yan Kong