Qingzhi Meng
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View article: High-Precision Continuous FBG Interrogator based on an AWG
High-Precision Continuous FBG Interrogator based on an AWG Open
Although arrayed waveguide gratings (AWGs) are widely used in fibre Bragg grating (FBG) demodulation systems, their applications in real environments have been limited due to their narrow dynamic range and inability to continuously demodul…
View article: Split ring hole metamaterial-enhanced pyroelectric detector for efficient multi-narrowband terahertz detection
Split ring hole metamaterial-enhanced pyroelectric detector for efficient multi-narrowband terahertz detection Open
Derived from infrared pyroelectric detection, typical terahertz (THz) pyroelectric detectors have low sensitivity at low-frequency THz bands. Based on the high-efficiency absorption of the metamaterial perfect absorber (MPA), a novel split…
View article: Theoretical Analysis of a Magnetic Shielding System Combining Active and Passive Modes
Theoretical Analysis of a Magnetic Shielding System Combining Active and Passive Modes Open
Considering the magnetic shielding requirements of both geomagnetic field and 50 Hz power-line frequency in the complex working conditions of the power grid, an electromagnetic shielding system combining active and passive modes is propose…
View article: A Co-Sputtering Process Optimization for the Preparation of FeGaB Alloy Magnetostrictive Thin Films
A Co-Sputtering Process Optimization for the Preparation of FeGaB Alloy Magnetostrictive Thin Films Open
A co-sputtering process for the deposition of Fe0.8Ga0.2B alloy magnetostrictive thin films is studied in this paper. The soft magnetic performance of Fe0.8Ga0.2B thin films is modulated by the direct-current (DC) sputtering power of an Fe…
View article: A Flexible Pressure Sensor Based on Graphene/Epoxy Resin Composite Film and Screen Printing Process
A Flexible Pressure Sensor Based on Graphene/Epoxy Resin Composite Film and Screen Printing Process Open
At present, flexible pressure-sensitive materials generally have problems with weak adhesion and poor wear resistance, which easily result in friction failure when used for plantar pressure detection. In this study, a flexible pressure sen…
View article: Design of High-Precision Parallel AWG Demodulation System
Design of High-Precision Parallel AWG Demodulation System Open
Here, we present a high-precision demodulation method that supports the arrayed waveguide grating (AWG) system, which includes a 1 × 8 AWG as the primary filter with a 0.5 nm channel spacing and a 1 × 4 AWG as the auxiliary filter with a 1…
View article: All Fiber Vector Magnetometer Based on Nitrogen-Vacancy Center
All Fiber Vector Magnetometer Based on Nitrogen-Vacancy Center Open
Magnetometers based on nitrogen-vacancy (NV) centers in diamonds have promising applications in fields of living systems biology, condensed matter physics, and industry. This paper proposes a portable and flexible all-fiber NV center vecto…
View article: Numerical Investigation of GaN HEMT Terahertz Detection Model Considering Multiple Scattering Mechanisms
Numerical Investigation of GaN HEMT Terahertz Detection Model Considering Multiple Scattering Mechanisms Open
GaN high-electron-mobility transistor (HEMT) terahertz (THz) detectors have been widely studied and applied in the past few decades. However, there are few reports about the influence of GaN/AlGaN heterostructure material properties on the…
View article: Modified Bow-Tie Antenna Array with Controllable Electric Near-Field Enhancement for Terahertz Band
Modified Bow-Tie Antenna Array with Controllable Electric Near-Field Enhancement for Terahertz Band Open
View article: Investigation on the Effect of Annealing Temperature on the Side Ohmic Contact Characteristics for Double Channel GaN/AlGaN Epitaxial Layer
Investigation on the Effect of Annealing Temperature on the Side Ohmic Contact Characteristics for Double Channel GaN/AlGaN Epitaxial Layer Open
A side ohmic contact mode for the double channel GaN/AlGaN epitaxial layer is proposed in this paper. Rectangle transmission line model (TLM) electrodes are prepared, and the specific contact resistance is tested at the annealing temperatu…
View article: A Terahertz Detector Based on Double-Channel GaN/AlGaN High Electronic Mobility Transistor
A Terahertz Detector Based on Double-Channel GaN/AlGaN High Electronic Mobility Transistor Open
A double-channel (DC) GaN/AlGaN high-electron-mobility transistor (HEMT) as a terahertz (THz) detector at 315 GHz frequency is proposed and fabricated in this paper. The structure of the epitaxial layer material in the detector is optimize…