Results 21 to 30 of about 9,001 (256)
Micromachines, 2018 We demonstrate a promising strategy to combine the micro-electromechanical film bulk acoustic resonator and the nanostructured sensitive fibers for the detection of low-concentration formaldehyde vapor.
Da Chen +5 more
doaj +1 more source
AIP Advances, 2021 Patterned piezoelectric films as inter-digital transducer (PP-IDT) structures on diamond substrates have been attracting extensive attention due to the increased working frequency, electromechanical coupling, and quality factor of piezoelectric devices ...
B. W. Xie +6 more
doaj +1 more source
An Investigation on Efficient Acoustic Energy Reflection of Flexible Film Bulk Acoustic Resonators
Nanotechnology and Precision Engineering, 2018 : This paper investigates the issues on acoustic energy reflection of flexible film bulk acoustic resonators (FBARs). The flexible FBAR was fabricated with an air cavity in the polymer substrate, which endowed the resonator with efficient acoustic ...
Chuanhai Gao +4 more
doaj +1 more source
Acoustic phonon dynamics in thin-films of the topological insulator Bi2Se3 [PDF]
, 2015 Transient reflectivity traces measured for nanometer-sized films of the topological insulator Bi2Se3 revealed GHz-range oscillations driven within the relaxation of hot carriers photoexcited with ultrashort laser pulses of 1.51 eV photon energy.
Babakiray, Sercan +4 more
core +3 more sources
Extremely Low Loss Phonon-Trapping Cryogenic Acoustic Cavities for Future Physical Experiments [PDF]
, 2013 Low loss Bulk Acoustic Wave devices are considered from the point of view of the solid state approach as phonon-confining cavities. We demonstrate effective design of such acoustic cavities with phonon-trapping techniques exhibiting extremely high ...
Abbé, Ph. +5 more
core +4 more sources
Characterization of Epoxy Resin (SU-8) Film Using Thickness-Shear Mode (TSM) Resonator under Various Conditions [PDF]
, 2004 Characterization of an epoxy resin film, commonly known as SU-8, is presented using thickness shear mode (TSM) quartz resonator. The impedance-admittance characteristics of the equivalent circuit models of the unperturbed and coated resonators are ...
Cernosek, Richard +3 more
core +2 more sources
A film bulk acoustic resonator pressure sensor based on lateral field excitation
International Journal of Distributed Sensor Networks, 2018 A high-sensitive thickness shear mode film bulk acoustic resonator pressure sensor based on lateral field excitation is designed with its structure simulated in environment of air and liquids.
Shujing Su +4 more
doaj +1 more source
FlexMEMS-enabled hetero-integration for monolithic FBAR-above-IC oscillators
Nanotechnology and Precision Engineering, 2019 In this work, a monolithic oscillator chip is heterogeneously integrated by a film bulk acoustic resonator (FBAR) and a complementary metal-oxide-semiconductor (CMOS) chip using FlexMEMS technology.
Chuanhai Gao, Menglun Zhang, Yuan Jiang
doaj +1 more source
Probing viscoelastic properties of a thin polymer film sheared between a beads layer and quartz crystal resonator [PDF]
, 2009 We report measurements of viscoelastic properties of thin polymer films of 10-100 nm at the MHz range. These thin films are confined between a quartz crystal resonator and a millimetric bead layer, producing an increase of both resonance frequency and ...
Ballantine D. S. +4 more
core +3 more sources
A Novel Bulk Acoustic Wave Resonator for Filters and Sensors Applications
Micromachines, 2015 Bulk acoustic wave (BAW) resonators are widely applied in filters and gravimetric sensors for physical or biochemical sensing. In this work, a new architecture of BAW resonator is demonstrated, which introduces a pair of reflection layers onto the top of
Zhixin Zhang +4 more
doaj +1 more source