Noise suppression of on-chip mechanical resonators by chaotic coherent feedback
, 2015 We propose a method to decouple the nanomechanical resonator in optomechanical systems from the environmental noise by introducing a chaotic coherent feedback loop. We find that the chaotic controller in the feedback loop can modulate the dynamics of the
Li, Chun-Wen +7 more
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Superconducting Material Diagnostics using a Scanning Near-Field Microwave Microscope
, 1998 We have developed scanning near-field microwave microscopes which can image electrodynamic properties of superconducting materials on length scales down to about 2 $\mu$m.
Anlage, Steven M. +7 more
core +2 more sources
Photothermal effects in ultra-precisely stabilized tunable microcavities
, 2016 We study the mechanical stability of a tunable high-finesse microcavity under ambient conditions and investigate light-induced effects that can both suppress and excite mechanical fluctuations.
Brachmann, Johannes F. S. +3 more
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Novel Compact and High Selectivity Dual-band BPF with Wide Stopband [PDF]
, 2012 A novel type of compact and high selectivity dual-band bandpass filter (BPF) incorporating a dual-mode defected ground structure resonator (DDGSR) and a dual-mode open-stub loaded stepped impedance resonator (DOLSIR) is proposed in this paper.
Guan, B.-R., Wang, L.
core +1 more source
Fast quantum information transfer with superconducting flux qubits coupled to a cavity
, 2012 We present a way to realize quantum information transfer with superconducting flux qubits coupled to a cavity. Because only resonant qubit-cavity interaction and resonant qubit-pulse interaction are applied, the information transfer can be performed much
Chen W +4 more
core +1 more source
Equivalence of Open-Loop and Closed-Loop Operation of SAW Resonators and Delay Lines
Sensors, 2019 Surface acoustic wave (SAW) sensors in the form of two-port resonators or delay lines are widely used in various fields of application. The readout of such sensors is achieved by electronic systems operating either in an open-loop or in a closed-loop ...
Phillip Durdaut +3 more
doaj +1 more source
Compact CPW-fed Antenna with Controllable WLAN Band-rejection for Microwave Imaging
Advanced ElectromagneticsThis work presents the design and experimental validation of a compact frequency reconfigurable coplanar waveguide (CPW)-fed ultra-wideband (UWB) antenna with a capability to on-demand reject WLAN frequencies within the range of 5.15 GHz to 5.85 GHz ...
M. Mokhtari +3 more
doaj +3 more sources
Amplifier enhances ring-down spectroscopy [PDF]
, 2004 In recent years, investigators have adapted the principles of ringdown spectroscopy (see sidebar, facing page) to fiber optic configurations by placing high reflectors on each end of a fiber and observing the ringdown time of an injected pulse.
Hitz, B., Stewart, G.
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Compact microwave elliptic function filter usingnovelmicrostrip meander open-loop resonators
Electronics Letters, 1996 A new type of microwave elliptic function bandpass filter using microstrip meander open-loop resonators is proposed. It is shown that the new filter structure is small and allows nonadjacent electric and magnetic couplings to be realised and adjusted. A four-pole filter of this type has, for the first time, been designed and fabricated.
J.S. Hong, M.J. Lancaster
openaire +1 more source
FPGA Readout for Frequency-Multiplexed Array of Micromechanical Resonators for Sub-Terahertz Imaging
SensorsField programmable gate arrays (FPGAs) have not only enhanced traditional sensing methods, such as pixel detection (CCD and CMOS), but also enabled the development of innovative approaches with significant potential for particle detection.
Leonardo Gregorat +8 more
doaj +1 more source