Latest Resonator Stories

Cell Phone Performance Might Improve With 'Nanoresonators'
2012-08-31 13:41:10

Researchers have learned how to mass produce tiny mechanical devices that could help cell phone users avoid the nuisance of dropped calls and slow downloads. The devices are designed to ease congestion over the airwaves to improve the performance of cell phones and other portable devices. "There is not enough radio spectrum to account for everybody's handheld portable device," said Jeffrey Rhoads, an associate professor of mechanical engineering at Purdue University. The overcrowding...

Getting Good Vibes
2012-08-16 08:35:30

Berkeley Lab and UC Berkeley researchers record first direct observations of quantum effects in an optomechanical system A long-time staple of science fiction is the tractor beam, a technology in which light is used to move massive objects — recall the tractor beam in the movie Star Wars that captured the Millennium Falcon and pulled it into the Death Star. While tractor beams of this sort remain science fiction, beams of light today are being used to mechanically manipulate atoms or...

2012-05-04 09:12:36

Switching light with light: only 140 photons are needed An optical switch developed at the Joint Quantum Institute (JQI) spurs the prospective integration of photonics and electronics. What, isn't electronics good enough? Well, nothing travels faster than light, and in the effort to speed up the processing and transmission of information, the combined use of light parcels (photons) along with electricity parcels (electrons) is desirable for developing a workable opto-electronic protocol....

World’s Most Sensitive Nanomechanical Sensor Revealed
2012-04-04 12:22:20

A team of physicists in Barcelona, Spain have for the first time fabricated and tested the world´s most sensitive Nanomechanical sensor, capable of detecting changes in mass of 1.7 yoctograms -- roughly the mass of a single proton. Team leader Professor Adrian Bachtold, of Catalan Institute of Technology´s Quantum NanoElectronics Group, and colleagues used the sensor, which is similar to a guitar string vibrating at very high frequencies (2 GHz), to compare the resonating...

2011-12-15 13:11:45

Physicists in Low Temperature Laboratory of Aalto University have shown how a nanomechanical oscillator can be used for detection and amplification of feeble radio waves or microwaves. A measurement using such a tiny device, resembling a miniaturized guitar string, can be performed with the least possible disturbance. The results were recently published in the most prestigious scientific arena, the British journal Nature. The researchers cooled the nanomechanical oscillator, thousand...

NIST's Compact Frequency Comb Could Go Places
2011-10-27 04:51:47

Laser frequency combs–extraordinarily precise tools for measuring frequencies (or colors) of light–have helped propel advances in timekeeping, trace gas detection and related physics research to new heights in the past decade. While typical lasers operate at only a single or handful of frequencies, laser frequency combs operate simultaneously at many frequencies, approaching a million for some combs. These combs have very fine, evenly spaced "teeth," each a specific frequency,...

2011-10-25 20:27:10

Cornell scientists have surpassed two major milestones toward a novel, exceedingly powerful X-ray source: A record-breaking electron gun emittance and a successfully tested prototype of a superconducting linac cavity. For more than a decade, Cornell scientists have been conducting research and development for an Energy Recovery Linac (ERL) electron accelerator that would produce X-ray beams 1,000 times brighter than any in existence. The university ultimately hopes to use ERL technology...

2011-06-29 08:31:44

A microlaser no bigger than a pinprick can accurately detect and count individual viruses, the particles that jumpstart cloud formation or those that contaminate the air we breathe. By Diana Lutz, Washington University in St. Louis A tiny doughnut-shaped laser is the latest marvel of silicon microminiaturization, but instead of manipulating bits it detects very small particles. Small particles play a big "” and largely unnoticed "” role in our everyday lives. Virus particles make...

2011-06-20 20:02:32

A new microspectrometer architecture that uses compact disc-shaped resonators could address the challenges of integrated lab-on-chip sensing systems that now require a large off-chip spectrometer to achieve high resolution. Spectrometers have conventionally been expensive and bulky bench-top instruments used to detect and identify the molecules inside a sample by shining light on it and measuring different wavelengths of the emitted or absorbed light. Previous efforts toward miniaturizing...

2011-05-16 14:45:04

Novel nano-mechanics: Mechanical resonators are extensively used in high-tech industry, to mark time in electronic components, and to stabilize radio transmissions Most mechanical resonators damp (slow down) in a well-understood linear manner, but ground-breaking work by Prof. Adrian Bachtold and his research group at the Catalan Institute of Nanotechnology has shown that resonators formed from nanoscale graphene and carbon nanotubes exhibit nonlinear damping, opening up exciting...

Word of the Day
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'