Zeji Chen
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View article: High-performance plasmonic mid-infrared bandpass filters by inverse design
High-performance plasmonic mid-infrared bandpass filters by inverse design Open
Plasmonic spectral filters composed of periodic nanostructured metal films offer novel opportunities for the development of multispectral imaging technologies in the mid-infrared region. However, traditional plasmonic filters, which typica…
View article: A GHz Silicon-Based Width Extensional Mode MEMS Resonator with Q over 10,000
A GHz Silicon-Based Width Extensional Mode MEMS Resonator with Q over 10,000 Open
This work presents a silicon-based capacitively transduced width extensional mode (WEM) MEMS rectangular plate resonator with quality factor (Q) of over 10,000 at a frequency of greater than 1 GHz. The Q value, determined by various loss m…
View article: A Novel Extensional Bulk Mode Resonator with Low Bias Voltages
A Novel Extensional Bulk Mode Resonator with Low Bias Voltages Open
This paper presents a novel Π-shaped bulk acoustic resonator (ΠBAR) with low bias voltages. Concave flanges were coupled with straight beams to effectively enlarge the transduction area. A silicon-on-insulator(SOI)-based fabrication proces…
View article: Distributed refractive index sensing based on bending-induced multimodal interference and Rayleigh backscattering spectrum
Distributed refractive index sensing based on bending-induced multimodal interference and Rayleigh backscattering spectrum Open
A distributed refractive index (RI) sensor based on high-performance optical frequency domain reflectometry was developed by bending a piece of standard single-mode fiber to excite sets of higher-order modes that penetrate the surrounding …
View article: Dominant Loss Mechanisms of Whispering Gallery Mode RF-MEMS Resonators with Wide Frequency Coverage
Dominant Loss Mechanisms of Whispering Gallery Mode RF-MEMS Resonators with Wide Frequency Coverage Open
This work investigates the dominant energy dissipations of the multi-frequency whispering gallery mode (WGM) resonators to provide an insight into the loss mechanisms of the devices. An extensive theory for each loss source was established…
View article: A Novel High Q Lamé-Mode Bulk Resonator with Low Bias Voltage
A Novel High Q Lamé-Mode Bulk Resonator with Low Bias Voltage Open
This work reports a novel silicon on insulator (SOI)-based high quality factor (Q factor) Lamé-mode bulk resonator which can be driven into vibration by a bias voltage as low as 3 V. A SOI-based fabrication process was developed to produce…