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The transition metal dichalcogenide (TMD) $1T$-TaS$_{2}$ exhibits a rich set of charge density wave (CDW) orders. Recent investigations suggested that using light or electric field can manipulate the commensurate (C) CDW ground state. Such…

Strongly Correlated Electrons · Physics 2016-09-15 D. F. Shao , R. C. Xiao , W. J. Lu , H. Y. Lv , J. Y. Li , X. B. Zhu , Y. P. Sun

High-gain optical parametric amplification is an important nonlinear process used both as a source of coherent infrared light and as a source of nonclassical light. In this work, we experimentally demonstrate an approach to optical…

Parametric amplification is an interesting way of artificially increasing a MEMS Quality factor and could be helpful in many kinds of applications. This paper presents a theoretical study of this principle, based on Matlab/Simulink…

Other Computer Science · Computer Science 2008-02-22 L. Grasser , H. Mathias , F. Parrain , X. Le Roux , J. -P. Gilles

The realization of single-molecule electronic devices, in which a nanometer-scale molecule is connected to macroscopic leads, requires the reproducible production of highly ordered nanoscale gaps in which a molecule of interest is…

Mesoscale and Nanoscale Physics · Physics 2009-05-08 Sujit S. Datta , Douglas R. Strachan , A. T. Charlie Johnson

Optomechanical gradient forces arise from evanescent fields of guided waves in parallel photonic waveguides. When designed to be of attractive nature, they increase exponentially as the gap between the waveguides decreases. Moreover, the…

Quantum cascaded up-conversion (CUpC) of parametric down conversion (PDC) in a finite nonlinear $\chi^{(2)}$-crystal is studied theoretically within parametric approximation. The exact solution for creation and annihilation operators…

Quantum Physics · Physics 2021-07-07 A. V. Rasputnyi , D. A. Kopylov

A crucial limit to measurement efficiencies of superconducting circuits comes from losses involved when coupling to an external quantum amplifier. Here, we realize a device circumventing this problem by directly embedding a two-level…

The nonlinear, parametric coupling between two harmonic oscillators has been used in the field of optomechanics for breakthrough experiments regarding the control and detection of mechanical resonators. Although this type of interaction is…

Quantum Physics · Physics 2022-12-08 D. Bothner , I. C. Rodrigues , G. A. Steele

We demonstrate the parametric modulation of a double quantum dot charge dipole coupled to a cavity, at the cavity frequency, achieving an amplified readout signal compared to conventional dispersive protocols. Our findings show that the…

We consider light propagation through a pair of nonlinear optical waveguides with absorption, placed in a medium with power gain. The active medium boosts the in-phase component of the overlapping evanescent fields of the guides, while the…

Optics · Physics 2015-06-17 N. V. Alexeeva , I. V. Barashenkov , K. Rayanov , S. Flach

We present the design, the fabrication and the characterization of a tunable one-dimensional (1D) photonic crystal cavity (PCC) etched on two vertically-coupled GaAs nanobeams. A novel fabrication method which prevents their adhesion under…

Supercapacitors, S-C - capacitors that take advantage of the large capacitance at the interface between an electrode and an electrolyte - have found many short-term energy applications. We concentrate here on optically induced, electrical…

Mesoscale and Nanoscale Physics · Physics 2021-03-30 H. Grebel

We demonstrate electro-mechanical control of an on-chip GaAs optical beam splitter containing a quantum dot single-photon source. The beam splitter consists of two nanobeam waveguides, which form a directional coupler (DC). The splitting…

Applied Physics · Physics 2018-05-03 Z. K. Bishop , A. P. Foster , B. Royall , C. Bentham , E. Clarke , M. S. Skolnick , L. R. Wilson

We report the implementation of a near-quantum-limited, traveling-wave parametric amplifier that uses three-wave mixing (3WM). To favor amplification by 3WM, we use the superconducting nonlinear asymmetric inductive element (SNAIL) loops,…

Carbon nanotubes are excellent nano-electromechanical systems, combining high resonance frequency, low mass, and large zero-point motion. At cryogenic temperatures they display high mechanical quality factors. Equally they are outstanding…

Mesoscale and Nanoscale Physics · Physics 2024-03-06 N. Hüttner , S. Blien , P. Steger , A. N. Loh , R. Graaf , A. K. Hüttel

In this paper, a non-isolated high step-up dc-dc converter is presented. The proposed converter is composed of an interleaved structure and diode-capacitor multiplier cells for interfacing low-voltage renewable energy sources to…

Systems and Control · Electrical Eng. & Systems 2020-09-11 Mamdouh L. Alghaythi , Robert M. Oconnell , Naz E. Islam , Josep M. Guerrero

In this paper, a novel model-free wide-area damping control (WADC) method is proposed, which can achieve full decoupling of modes and damp multiple critical inter-area oscillations simultaneously using grid-connected voltage source…

Systems and Control · Electrical Eng. & Systems 2021-02-11 Jinpeng Guo , Ilias Zenelis , Xiaozhe Wang , Boon-Teck Ooi

In this paper, a circuit employing current controlled current conveyor trans-conductance amplifiers (CCCCTAs) as active element is proposed which can function both as biquad filter and oscillator. It uses two CCCCTAs and two capacitors. As…

Systems and Control · Computer Science 2013-06-25 Sajai Vir Singh , Gungan Gupta , Rahul Chhabra , Kanika Nagpal , Devansh

Solid-state qubits integrated on semiconductor substrates currently require at least one wire from every qubit to the control electronics, leading to a so-called wiring bottleneck for scaling. Demultiplexing via on-chip circuitry offers an…

Carbon based optoelectronic devices promise to revolutionize modern integrated circuits by combining outstanding electrical and optical properties into a unified technology. By coupling nanoelectronic devices to nanophotonic structures…

Mesoscale and Nanoscale Physics · Physics 2013-06-25 Svetlana Khasminskaya , Feliks Pyatkov , Benjamin S. Flavel , Wolfram H. P. Pernice , Ralph Krupke