In this paper, empirical relations for the evaluation of both the resonant frequency fr and the quality factor Q for the dominant TM010 mode of a circular substrate integrated waveguide (SIW) cavity resonator are proposed and validated. These formulas are based on well established analytical expressions valid for the case of circular metallic cavity resonator, in which an equivalent radius Req ...

The bell-shaped vibratory angular rate gyro (abbreviated as BVG) is a novel shell vibratory gyroscope, which is inspired by the Chinese traditional bell. It sensitizes angular velocity through the standing wave precession effect. The bell-shaped resonator is a core component of the BVG and looks like the millimeter-grade Chinese traditional bell, such as QianLong Bell and Yongle Bell. It is mad...

A porous-wall hollow glass microsphere (PW-HGM) was investigated as an optical resonator for chemical vapor sensing. A single mode optical fiber taper was used to interrogate the microresonator. Adsorption of chemical molecules into the nanosized pores induced a refractive index change of the thin wall and thus a shift in its resonance spectrum. The PW-HGM resonator had shown higher vapor detec...

We propose and demonstrate a dispersion control technique by combination of different waveguide cross sections in an aluminum nitride micro-ring resonator. Narrow and wide waveguides with normal and anomalous dispersion, respectively, are linked with tapering waveguides and enclosed in a ring resonator to produce a total dispersion near zero. The mode-coupling in multimoded waveguides is also e...

This work deals with the effect of a Helmholtz resonator on the acoustic vibration inside the cavity of a domestic refrigerator compressor. A multi-mode analytical model is developed and some analyses are carried out showing the influence of resonator parameters on the acoustic behaviour of the cavity. Then the results of the tests which were performed on an industrial compressor during its act...

This study analyzes the capabilities of a LiNbO₃ whispering gallery mode microdisc resonator as a potential bolometer detector in the THz range. The resonator is theoretically characterized in the stationary regime by its thermo-optic and thermal coefficients. Considering a Q-factor of 10⁷, a minimum detectable power of 20 μW was evaluated, three orders of magnitude above its noise equivalent p...

We propose a level-resolved protocol in hybrid architecture for connecting superconducting qubit and magnon mode contained within microwave cavity (resonator) to generate the local global entangled states, enabling wide range of applications quantum communication, metrology, information processing. Exploiting high-degree controllability such qubit-photon-magnon system, we derive effective Hamil...

A compact side-pumped solar laser design using a Ce:Nd:YAG medium is here proposed to improve the TEM00-mode output performance, more specifically beam brightness. The performance of head was numerically studied by both ZEMAX® v13 and LASCADTM v1 software. Maximum multimode power 99.5 W computed for 4.1 mm diameter, 34 length grooved rod, corresponding collection efficiency 33.2 W/m2. To extrac...

A novel compact-sized ultra-wideband (UWB) bandpass filter (BPF) is proposed in this paper. The proposed BPF is highly selective and is able to eliminate WLAN signals from 5.15-5.35 GHz, and downlink of X-band satellite communication signals from 7.25-7.75 GHz. Generally, a multiple-mode resonator (MMR), comprised of a U-shaped line, with two high impedance stubs connected to it, and one steppe...

Whispering gallery mode resonators (WGMR) are an efficient tool for the realization of optical biosensors. A high Q factor preservation is a crucial requirement for good biosensor performances. In this work we present an Eudragit®L100 coated microspherical WGMR as an efficient immunosensor. The developed resonator was morphologically characterized using fluorescence microscopy. The functionaliz...