This study attempts to compare the signal-to-noise ratio (SNR) of the 40 mm High-Temperature Superconducting (HTS) surface resonator at 77 K and the 35 mm commercial quadrature (QD) surface resonator at 300 K in a 3 Tesla (T) MRI imager. To aquire images for the comparison, we implemented a phantom experiment using the 40 mm diameter Bi2Sr2Ca2Cu3Ox (Bi-2223) HTS surface resonator, the 35 mm com...

The Helmholtz resonator is a prototype of a single acoustic resonance, which can be modeled with a digital resonator. This paper extends this concept by coupling several Helmholtz resonators. The resulting structure is called a Helmholtz resonator tree. The height of the tree is defined by the number of resonator layers that are interconnected. The overall number of resonance frequencies of a H...

We demonstrate a frequency-tunable superconducting coplanar waveguide resonator, with a tuning range of half a gigahertz and a switching time of 1 ns. The resonator is made tunable by inserting a superconducting quantum interference device in the center strip of the resonator. Quantum measurements are made by probing the resonator with a superconducting qubit, allowing us to use microwave photo...

still remember that brief moment that revealed the astonishment of everyone in the audience. Andrew Cleland had just concluded his talk at the conference ‘Quantum Optics of Nanoand Micromechanical Systems’, which was held last July in Bad Honnef, Germany. He had taken us all by surprise. Andrew’s talk had begun as a review of recent results of his and John Martinis’ team — they had achieved an ...

Time-dependent linear coupling between macroscopic quantum resonator modes generates both a parametric amplification also known as a “squeezing operation” and a beam splitter operation, analogous to quantum optical systems. These operations, when applied properly, can robustly generate entanglement and squeezing for the quantum resonator modes. Here, we present such coupling schemes between a n...

Nowadays, much attention is paid to the creation of high-performance lubricants with improved properties through use ultrafine nanopowders. The paper shows results studying viscoelastic samples silicon dioxide nanoparticle suspensions based on polyethylsiloxane (silicone oil) by acoustic resonance method. method a study additional coupling effect characteristics piezoelectric resonator. values ...

Theoretical analysis and Computer simulations have proven to be cost-effective and powerful tools in scientific studies of materials, particularly at nano-scale where synthesis of nano-structures, interpretation of their observed character and exploration of new structures are not always straight forward. We present here fundamental principles of techniques used today for computational simulati...

In this paper, a 1D photonic crystal waveguide and plasmonic compound nano-system are utilized to design hybrid photonic-plasmonic device for enhancement of light–matter interaction. Strongly localized light waves in very small volume intensify the optical field, via surface plasmons due presence gold nanoparticle, which interacts with resonator’s cavity mode while nanobeam ensures high tempora...

Bifurcation amplifiers are known for their extremely high sensitivity to weak input signals. We implement a bifurcation amplifier by harnessing the Duffing nonlinearity in parametrically excited MoS2 nano-electromechanical system. utilize ultra-sensitive switching response between two states of detect as well register charge-fluctuation events. demonstrate open-loop real-time detection ultra-lo...