Friday, July 1, 2016
Power Splitter for Terahertz Waves Developed to Improve Data Capacity in Cellular and Wi-Fi networks
S. C. Corzo-Garcia, A. I. Hernandez-Serrano, E. Castro-Camus, and O. Mitrofanov
Phys. Rev. B, 045301 – Published 1 July 2016https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.045301
B. N. Carnio, S. R. Greig, C. J. Firby, K. T. Zawilski, P. G. Schunemann and A. Y. Elezzabi
The electro-optic detection capabilities of a 〈012〉-cut chalcopyrite ZnGeP (ZGP) crystal is investigated in the terahertz (THz) frequency regime. Our experiments attest that ZGP exhibits low THz losses and and that phonon-polariton effects are too weak to perturb the THz pulse. Additionally, ZGP is shown to have excellent phase matching between an optical probe pulse and a THz pulse. For a 1080 m thick ZGP crystal, this phase matching yields a detection bandwidth 1.3 times greater than and 4.8 times greater than and GaP. Thus, ZGP has promising applications in THz time-domain
Thursday, June 30, 2016
OT-CorMedix Secures First Research Collaboration in the Medical Device Space with Luna Innovations Inc.
BEDMINSTER, NJ / ACCESSWIRE / June 29, 2016 / CorMedix Inc. (NYSE MKT: CRMD), a biopharma
biopharmaceutical company focused on developing and commercializing therapeutic products for the prevention and treatment of infectious and inflammatory disease, announced today that it has entered into a material transfer agreement with Luna Innovations Inc. (NASDAQ:LUNA), a company with broad expertise in materials technology and applied R&D in the health sciences, to test the feasibility of incorporating taurolidine into electrospun nanofibers. Luna will leverage its existing government-funded research and biomaterials expertise to create nanofibers loaded with CRMD-006, CorMedix's proprietary formulation of taurolidine, to create unique scaffolds with anti-microbial and anti-inflammatory properties that can be used primarily for wound closure and burn care. Under the agreement, Luna and CorMedix will also explore opportunities to commercialize any product, invention, or derivative developed under the collaboration.
Chronic non-healing wounds and burns expose patients to risk of infections that can complicate healing and have the potential to progress into life-threatening conditions. Electrospun fiber meshes use synthetic and natural polymers to improve patient outcomes relative to conventional dressings. Unfortunately, few dressings have been developed that allow delivery of analgesics or therapeutics while effectively preventing infections. By combining CRMD-006 with Luna's electrospinning technology, if feasible, the companies may advance a novel anti-microbial medical device for use wound care that can simultaneously provide wound management, pain relief, and anti-microbial activity.
Randy Milby, chief executive officer of CorMedix, stated, "As we've discussed, identifying partnership opportunities and expanding the potential of our taurolidine platform is a key component of our growth strategy. This agreement with Luna marks our first such collaboration in the medical device space and we are optimistic about the possibility of creating nanofiber meshes with taurolidine's proven anti-microbial and anti-inflammatory properties."
My E. Chung, president and chief executive officer of Luna Innovations, added, "We are excited to have this opportunity to leverage our expertise and be a part of this significant development. Partnering with CorMedix to explore this challenge is yet another example of the unique capabilities of our Technology Development Division." Less
In order for the promise of terahertz (THz) wireless communications to become a reality, many new devices need to be developed, such as those for routing THz waves. We demonstrate a power splitting router based on a parallel-plate waveguide (PPWG) T-junction excited by the TE1 waveguide mode. By integrating a small triangular septum into the waveguide plate, we are able to direct the THz light down either one of the two output channels with precise control over the ratio between waveguide outputs. We find good agreement between experiment and simulation in both amplitude and phase. We show that the ratio between waveguide outputs varies exponentially with septum translation offset and that nearly 100% transmission can be achieved. The splitter operates over almost the entire range in which the waveguide is single mode, providing a sensitive and broadband method for THz power splitting.