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news digest ♦ Telecoms antenna array surfaces could have a significant impact.”


Other nano-scale antenna systems cannot be tuned to a longer light wavelength because of the limitations of traditional nanoantenna materials. The Illinois team used highly doped semiconductors grown by MBE.


“We have shown that nanostructures fabricated from highly doped semiconductors act as antennas in the infrared,” notes Stephanie Law, a postdoctoral researcher at Illinois and the lead author of the work published in the journal Nano Letters. “The antennas concentrate this very long wavelength light into ultra- subwavelength volumes, and can be used to sense molecules with very weak absorption resonances.”


The semiconductor antenna arrays allow long- wavelength light to strongly interact with nano-scale samples, so the arrays could enhance the detection of small volumes of materials with a standard IR spectrometer - already a commonplace piece of equipment in many industrial and research labs.


The researchers further demonstrated their ability to control the position and strength of the antenna resonance by adjusting the nanoantenna dimensions and the semiconductor material properties.


The group will continue to explore new shapes and structures to further enhance light-matter interaction at very small scales and to potentially integrate these materials with other sensing systems.


“We are looking to integrate these antenna structures with optoelectronic devices to make more efficient, smaller, optoelectronic components for sensing and security applications,” Wasserman concludes.


This work is described in detail the paper, “All- Semiconductor Plasmonic Nanoantennas for Infrared Sensing,” by Stephanie Law et al in Nano Letters, 2013, 13 (9), pp 4569-4574. DOI: 10.1021/nl402766t


Infinera InP PICs extend mid- atlantic broadband network


MBD has increased the reach of its indium phosphide DTNX platform to new high-bandwidth sites in DC and Virginia


Mid-Atlantic Broadband Communities Corporation (MBC), a wholesale open-access network transport provider, has expanded its network in the mid-Atlantic region with connections in Washington, DC and Richmond, Virginia.


88 www.compoundsemiconductor.net October 2013


MBC has expanded the reach of its advanced open- access transport network with new Points of Presence (POP) locations at the CoreSite data centre at 1275 K Street in Washington, DC and the QTS data centre at 6000 Technology Boulevard, Richmond, Virginia.


These expanded POP locations will enable MBC to provide wholesale transport services to its carrier customers as well as enable additional connectivity options.


MBC has extended itsrobust Infinera DTN network into these new interconnection facilities. MBC’s Infinera network enables rapid provisioning for high bandwidth transport services, and provides low latency transport connections to southern Virginia and MBC interconnection facilities in the Carolina’s and Georgia.


“We are pleased to work with MBC to expand their network into Washington, DC,” says Mark Showalter, Sr. Director of Communications at Infinera. “Infinera’s Intelligent Transport Network enables MBC to rapidly deploy 10G and 100G connectivity to both small and large service providers in the region.”


“Our goal of providing a robust open-access wholesale transport network for carriers continues to pay dividends for our region,” comments Tad Deriso, President and CEO of MBC. “Creating more on-net connections between carrier neutral data centers in major markets and our Southern Virginia region supports our mission of enhancing our regional competitive advantage with communications infrastructure.”


MBC now has 32 on-net locations for interconnection and will continue to expand its reach to enhance its robust regional network.


NeoPhotonics adds smaller NLW laser and ICR To 100G product portfolio


The compact indium phosphide (InP) PIC narrow linewidth μITLA and compact ICR enable higher port density on 100G and above coherent line cards and transponders


NeoPhotonics Corporation will be exhibiting its suite of small form factor Photonic Integrated Circuit (PIC) based optical components for 100G Coherent Transport at the European Conference on Optical Communications (ECOC).


NeoPhotonics is a designer and manufacturer of InP based photonic integrated circuit, or PIC, based


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