The analogue of tsunami for telecommunication
Development of electronics and communication requires hardware capable of increasingly larger precision, ergonomics and throughput. For communication and GPS navigation satellites, it is of great importance to reduce the ...
A frequency conversion interface to the telecommunications band using nanophotonics
Using nanofabricated waveguides in a silicon-based platform, researchers from the NIST Center for Nanoscale Science and Technology (CNST) have developed a frequency conversion interface between the optical ...
Graphene nanoribbons an ice-melting coat for radar
(Phys.org) —Ribbons of ultrathin graphene combined with polyurethane paint meant for cars is just right for deicing sensitive military radar domes, according to scientists at Rice University.
Fast radio bursts might come from nearby stars
First discovered in 2007, "fast radio bursts" continue to defy explanation. These cosmic chirps last for only a thousandth of a second. The characteristics of the radio pulses suggested that they came from ...
Study shows global warming likely to alter bat echolocation abilities
Scientists scale terahertz peaks in nanotubes
(Phys.org) —Carbon nanotubes carry plasmonic signals in the terahertz range of the electromagnetic spectrum, but only if they're metallic by nature or doped.
Nanoscale 'tsunami' helps locusts tune in
The remarkable mechanism by which the tiny ears of locusts can hear and distinguish between different tones has been discovered by researchers from the University of Bristol.
Work begins on world's most powerful radio telescope
This week, work begins on the next phase of development for the Square Kilometre Array radio telescope, with the University of Cambridge leading major 'work packages'.
Vibrating micro plates bring order to overcrowded radio spectrum
GSM, WiFi, Bluetooth, 4G, GPS: a smartphone already has to handle many wireless standards. And this number will only increase further. There are still no good filters to keep all those future standards separate. ...
Watching the heart beat of molecules
A team of scientists around Prof. Theodor W. Hänsch and Dr. Nathalie Picqué at the Laser Spectroscopy Division of the Max Planck Institute of Quantum Optics (Garching), in a collaboration with the Ludwig-Maximilians-Universität ...
Innovative wideband ring voltage-controlled oscillator (VCO)
A new wideband ring voltage-controlled oscillator (VOC) was proposed by UNIST undergraduate student, Seyeon Yoo with the the research work published in IEEE Microwave and Wireless Components Letters.
New level for continuous-wave terahertz lasers
Since the first quantum cascade (QC) laser was demonstrated in 1994 and implemented in THz regime in 2002, they have become one of the most important solid state light sources in this frequency range. The ...
Optical wireless may be the answer to dropped calls, and more
Anyone who has tried to make a cell phone call from a crowded football stadium has had a taste of what engineers call spectrum crunch.
Measuring height by connecting clocks
How far above sea level is a place located? And where exactly is "sea level"? It is one objective of the geodesists to answer these questions with 1 cm accuracy. Conventional measurement procedures or GPS ...