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Latest Resonator Stories

2009-12-14 08:00:00

HUDSON, N.H., Dec. 14 /PRNewswire/ -- Vectron International, a leader in the design, manufacture and marketing of Frequency Control, Sensor, and Hybrid Product solutions, today announced its new solution for the timing of ultra high-temperature electronics, the PX-420 crystal oscillator. Able to withstand continuous operating temperatures of up to 250 degrees Celsius, the product is ideal for harsh environment applications, including oil and gas downhole operations. With the PX-420,...

2009-09-17 10:30:29

The U.S. Department of Energy's (DOE's) Thomas Jefferson National Accelerator Facility marked a step forward in the field of advanced particle accelerator technology with the successful test of the first U.S.-built superconducting radiofrequency (SRF) niobium cavity to meet the exacting specifications of the proposed International Linear Collider (ILC).  The cavity was developed as part of a DOE-funded R&D effort focused on developing technologies that would be required for an ILC,...

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2009-07-29 09:25:00

Light is intangible and, in addition, it travels at great velocity. Nevertheless, it can be confined to a very small space by controlably inserting light into a microscopic container surrounded by reflective walls. The light will then be stored by continuous reflections and cannot escape. In the scientific domain, such a small reflective microcavity is termed a microresonator. These microresonators find applications in all areas where the interaction between light and matter shall be enhanced...

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2009-07-22 16:45:00

Device can instantly measure the mass of an individual moleculeUsing devices millionths of a meter in size, physicists at the California Institute of Technology (Caltech) have developed a technique to determine the mass of a single molecule, in real time.The mass of molecules is traditionally measured using mass spectrometry, in which samples consisting of tens of thousands of molecules are ionized, to produce charged versions of the molecules, or ions. Those ions are then directed into an...

2009-06-24 14:58:09

University of Illinois scientists say they have created the first acoustic superlens, an innovation that could impact several technologies. The researchers, led by Professor Nicholas Fang, said their achievement could have practical implications for high-resolution ultrasound imaging, non-destructive structural testing of buildings and bridges, and underwater stealth technology. The scientists said they successfully focused ultrasound waves through a flat metamaterial lens onto a spot about...

2009-04-24 08:59:21

More than one nanostring to their bowThese days, chemical analysts are expected to track down even single molecules. To do this highly sensitive detective work, nano researchers have developed minute strings that resonate in characteristic fashion. If a molecule docks onto one of the strings, then it becomes heavier, and its oscillations become measurably slower. Until recently, however, such "nano-electromechanical systems", or NEMS, have been short of practical applications. Physicists at...

2009-03-19 08:55:11

Caesium fountains are more accurate than "normal" atomic caesium clocks, because in fountains the caesium atoms are cooled down with the aid of laser beams and come ever slower - from a rapid velocity at room temperature to a slow "creep pace" of a few centimetres per second at a temperature close to the absolute zero point. Thus, the atoms remain together for a longer time so that the physicists have considerably more time to measure the decisive property of the caesium atoms which is...

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2008-03-19 10:18:16

Recent research at the National Institute of Standards and Technology (NIST) has demonstrated that thin films made of "metamaterials""”manmade composites engineered to offer strange combinations of electromagnetic properties"”can reduce the size of resonating circuits that generate microwaves. The work is a step forward in the worldwide quest to further shrink electronic devices such as cell phones, radios, and radar equipment.Metamaterials may be best known as a possible means of...

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2005-10-11 14:12:27

Trapping, cooling, and storing neutral atoms requires an elaborate process. As a first method we have, now almost classic, laser cooling in a "magneto-optical trap". Atoms are shot from six directions with laser beams whose frequency lies somewhat below the excitation energy. In this way, the particles always absorb light when they move themselves on the beam - because of the Doppler effect, they are in resonance - and then are slowed down in this direction. We call it cooling, when an...

2005-07-06 12:35:00

LONDON -- It's easy to produce a simple sound but virtuoso didgeridoo playing involves tricky breathing and a certain way of opening the vocal tract, Australian physicists said Wednesday. The unusual instrument, which originated in northern Australia and is made from the trunk of a tree hollowed out by termites, usually plays only one note. But skilled performers can produce a range of resonating sounds. Scientists at the University of New South Wales in Sydney studied how the masters do it...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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