resonator

Resonator

Adapter (40)
Anode (195)
Cathode (146)
Dielectric material (55)
Direct current (16)
Electric arc (8)
Electric current (81)
Electric field (150)
Electrical circuit (30)
Electrical conduction (5)
Electrical conductivity (75)
Electrical engineering (270)
Electrical insulator (6)
Electrification (8)
Electroluminescence (23)
Electromagnetism (22)
Mechatronics (6)
Photoelectric effect (8)
Resistor (17)
Resonator (92)
Signal processing (27)
Superconductivity (224)

and estimated the intensity of light in the two resonators and surprisingly found an initial decrease in total intensity of the two resonators followed by an increase

and finally a rebirth of strong light intensity as the loss was increased. he loss added beyond a critical value increased the total light intensity and its distribution between the resonatorssays Bo Peng a graduate student.

The experimental system that the researchers used consists of two tiny directly coupled silica microtoroid (doughnut-shaped) resonators each coupled to a different fiber-taper coupler that aids in guiding light from a laser diode to photodetectors;

so that light can between the fibers and the resonators. Yang says the concept will work in any coupled physical system.

whose position within the evanescent field (leaked-out light) of one of the resonator was controlled by a nanopositioner that operates at a minuscule 20-nanometer resolution. hromium is used

Another nanopositioner controls the coupling strength between the resonators by tuning their distance. The loss-gain phenomenon occurs near a feature called the exceptional point

and results in recent physics studies. hen we steer the system through the exceptional point the symmetric distribution of the fields between two resonators become asymmetricozdemir says. symmetric distribution leads to field localization increasing the light intensity in one

of the resonators in this case the resonator with less loss. s a result all nonlinear processes

Though ultrasound detectors existncluding those used in medical imaginghe researchers made their own sensitive one in the form of a microscopic plastic ring known as a microring resonator.

in optical resonators the pitch corresponds to the color or wavelength of the lightsays Kerry Vahala professor of information science and technology and applied physics at the California Institute of technology (Caltech.

and his colleagues transferred this concept to their optical resonator focusing on the optical quality factor and other elements that affect frequency stability.

The researchers were able to stabilize the light s frequency by developing a silica glass chip resonator with a specially designed path for the photons in the shape of

Because the new resonator has a longer path the energy changes are diluted so the power surges are dampenedâ##greatly improving the consistency

and quality of the resonator s reference signal which in turn improves the quality of the electronic or optical device.

In the new design photons are applied to an outer ring of the spiraled resonator with a tiny light-dispensing optic fiber;

In combination with the resonator a special guide for the light was used losing 100 times less energy than the average chip-based device.

Plug a resonator into a wall outlet, and a device installed on a cellphone or an electric car receives the power

and TVS by attaching resonator coils to batteries and an electric car refueller is reportedly in the works.

who has developed a different technique for weighing single living cells by sticking them onto a tiny resonator

transistors for flexible electronics high-efficiency light-emitting diodes resonator-based mass sensors and integrated near-field optoelectronic tips for advanced scanning tip microscopy.

Adrian Bachtold, together with Marc Dykman (Michigan University), report on an experiment in which a carbon nanotube mechanical resonator exhibits quality factors of up to 5 million,

This allows them to determine how precise the resonator can be at measuring or sensing objects.

Scientists use mechanical resonators to study all sorts of physical phenomena. Nowadays, carbon nanotube mechanical resonators are in demand because of their extremely small size and their outstanding capability of sensing objects at the nanoscale.

Though they are very good mass and force sensors, their quality factors have been somewhat modest.

What is a Mechanical Resonator? A mechanical resonator is a system that vibrates at very precise frequencies.

Like a guitar string or a tightrope, a carbon nanotube resonator consists of a tiny, vibrating bridge-like (string) structure with typical dimensions of 1#m in length and 1nm in diameter.

If the quality factor of the resonator is high, the string will vibrate at a very precise frequency,

thus enabling these systems to become appealing mass and force sensors, and exciting quantum systems. Why is This Discovery so Important?

For many years, researchers observed that quality factors decreased with the volume of the resonator, that is the smaller the resonator the lower the quality factor,

The giant quality factors that ICFO researchers have measured have not been observed before in nanotube resonators mainly

since"nanotube resonators are enormously sensitive to surrounding electrical charges that fluctuate constantly. This stormy environment strongly affects our ability to capture the intrinsic behavior of nanotube resonators.

For this reason, we had to take a very large number of snapshots of the nanotube's mechanical behavior.

For instance, nanotube resonators might be used to detect individual nuclear spins, which would be an important step towards magnetic resonance imaging (MRI) with a spatial resolution at the atomic level.

known as a suspended microchannel resonator (SMR), measures particlesmasses as they flow through a narrow channel.

and to measure how each particle affects the vibration frequency of each mode at each point along the resonator.

This has an internal oscillator that adjusts its own frequency to correspond to the frequency of a resonator mode,

which makes use of several vibration modes to image an object as it sits on a nanomechanical resonator.

where objects must be attached to the resonator. The ability to achieve this dynamically in flow opens up exciting possibilities,

uantum squeezing of motion in a mechanical resonator. In addition to Schwab, Clerk, and Marquardt, other coauthors include former graduate student Emma E. Wollman (Phd 5);

what they called anoplasmonic resonators, which measures the interaction of photons with an activated surface using nanostructures

The method produces measurements much more reliably. t Optokey wee able to mass produce this nanoplasmonic resonator on a wafer scale,

The key discovery that led to the formation of Optokey was the development of the nanoplasmonic resonators to dramatically improve the signal and reliability of Raman spectroscopy.

#A resonator for electrons More than two thousand years ago the Greek inventor and philosopher Archimedes already came up with the idea of using a curved mirror to reflect light in such a way as to focus it into a point-legend has it that he used this technique to set

or parabolic mirrors are used in a host of technical applications ranging from satellite dishes to laser resonators,

Modern quantum physics also makes use of resonators with curved mirrors. In order to study single atoms for example, researchers use the light focused by the mirrors to enhance the interaction between the light waves and the atoms.

A team of physicists at ETH Zurich, working within the framework of the National Centre of Competence in Research Quantum Science and Technology (NCCR QSIT), have managed now to build a resonator that focuses electrons rather than light waves.

In the near future, such resonators could be used for constructing quantum computers and for investigating many-body effects in solids.

"Our results show that the electrons in the resonator do not just fly back and forth, but actually form a standing wave

and the electronic wave in the resonator happens through the spin.""In the future, this spin-coherent coupling could make it possible to connect quantum dots over large distances,

A long-distance coupling through an appropriately designed resonator could elegantly solve this problem. Basic science could also benefit from the electron resonators realized by the ETH researchers, for instance in studies of the Kondo effect.

This effect occurs when many electrons together interact with the magnetic moment of an impurity in a material.

With the help of a resonator and a quantum dot simulating such an impurity, the physicists hope to be able to study the Kondo effect very precisely.

known as a suspended microchannel resonator (SMR), measures particlesmasses as they flow through a narrow channel.

and to measure how each particle affects the vibration frequency of each mode at each point along the resonator.

This has an internal oscillator that adjusts its own frequency to correspond to the frequency of a resonator mode,

which makes use of several vibration modes to image an object as it sits on a nanomechanical resonator.

where objects must be attached to the resonator. The ability to achieve this dynamically in flow opens up exciting possibilities,

and high-stiffness materials can serve as high-quality optical films in multilayer photonic structures, waveguides, resonators,

and resonators (like the body of a guitar) amplify sound. They reported their findings in the May 8, 2015,

Graphene-based quantum electronic resonators and lenses have as yet untold potential but if conventional optics is any guide,

dielectric resonators are used already as antennas in mobile phones, for example.""In dielectric aerials, the medium has high permittivity,

these materials become not only efficient resonators, but efficient radiators as well, meaning that they can be used as aerials.

An efficient terahertz emission from two-dimensional arrays of gold split-ring resonator metamaterials was discovered as a result of excitation by a near-infrared pulsed laser.

The building blocks of metamaterials, known as split-ring resonators, can be designed to exhibit strong electric and magnetic response to electromagnetic fields over a wide frequency range, from terahertz to infrared.

when a two-dimensional array of nanometer-sized gold metamaterial resonators is illuminated by a tunable near-infrared femtosecond laser,

researchers attach it to a tiny vibrating device, known as a nanoelectromechanical system (NEMS) resonator.""One standard way to tell the difference between molecules is to weigh them using a technique called mass spectrometry.

#Quantum states in a nano-object manipulated using a mechanical system Scientists at The swiss Nanoscience Institute at the University of Basel have used resonators made from single-crystalline diamonds to develop a novel device in

For the first time, the researchers were able to show that this mechanical system can be used to coherently manipulate an electron spin embedded in the resonator--without external antennas or complex microelectronic structures.

the research team led by Georg H. Endress Professor Patrick Maletinsky described how resonators made from single-crystalline diamonds with individually embedded electrons are suited highly to addressing the spin of these electrons.

These diamond resonators were modified in multiple instances so that a carbon atom from the diamond lattice was replaced with a nitrogen atom in their crystal lattices with a missing atom directly adjacent.

When the resonator now begins to oscillate, strain develops in the diamond's crystal structure. This

Extremely fast spin oscillation In this latest publication, the scientists have shaken the resonators in a way that allows them to induce a coherent oscillation of the coupled spin for the first time.

This spin oscillation is compared fast with the frequency of the resonator. It also protects the spin against harmful decoherence mechanisms.

It is conceivable that this diamond resonator could be applied to sensors--potentially in a highly sensitive way

--because the oscillation of the resonator can be recorded via the altered spin. These new findings also allow the spin to be rotated coherently over a very long period of close to 100 microseconds,

be it a grating, resonator or waveguide, which will enable control of the photons that the quantum dot generates.

known as a nanoelectromechanical system (NEMS) resonator. ne standard way to tell the difference between molecules is to weigh them using a technique called mass spectrometry.

In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,

Our approach is to trap the probe light used for imaging inside of an optical resonator,

Because of the resonator, the signal gets enhanced by a factor of 50000. In the microscope, built by Dr. David Hunger and his team,

one side of the resonator is made of a plane mirror that serves at the same time as a carrier for the nanoparticles under investigation.

Laser light is coupled into the resonator through this fibre. The plane mirror is moved point by point with respect to the fibre

In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,

which consists of a periodic array of strongly coupled nanorod resonators, could improve systems that perform optical characterization in scientific devices, such as ellipsometers;

"Our approach is to trap the probe light used for imaging inside of an optical resonator,

Because of the resonator, the signal gets enhanced by a factor of 50000.""In the microscope, built by Dr. David Hunger and his team,

one side of the resonator is made of a plane mirror that serves at the same time as a carrier for the nanoparticles under investigation.

Laser light is coupled into the resonator through this fibre. The plane mirror is moved point by point with respect to the fibre

In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,

and Edward Chen, who is also a graduate student studying under the guidance of Englund at MIT. oupling the NV centers with these optical resonator cavities seemed to preserve the NV spin coherence timehe duration of the memory,