136 Result(s)
within
Chapter
He** Lin
Physics
Optics, Lasers, Photonics, Optical Devices
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Chapter and Conference Paper
Design of a Novel Spherical TWT Multistage Depressed Collector
THz wave is one of the most important technologies today, and the traveling wave tube (TWT) is a common amplifier for THz wave. Because the efficiency of the TWT is inferior to expected, most of the energy of ...
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Chapter and Conference Paper
Power Detection of Solid-State Terahertz Transmitters: Terahertz Induced Thermoacoustic Signal and Its Characteristics
We propose a real-time terahertz (THz) power detection method based on the terahertz-thermoacoustic (THz-TA) effect. Our self-made THz transmitter operates at a center frequency of 0.17 THz with a maximum outp...
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Chapter and Conference Paper
A Single Active Phase Hybrid Buck Converter with Reduced Voltage Stress and Wide Voltage Conversion Ratios for Integrated Terahertz Systems
The integrated DC-DC converter, as a pivotal power management solution, stands as a crucial technology in realizing integrated terahertz (THz) systems, especially in large arrays. This article presents a singl...
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Chapter and Conference Paper
Ultrasensitive Terahertz Detection via Different Novel Metasurfaces
In recent decades, Terahertz (THz) bioanalytical sensors are considered as an excellent sensing platform due to the advantages such as label-free, accurate, nonionizing, high signal to noise ratio, and non-dam...
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Chapter and Conference Paper
Design of Folded Slow Wave Structure for 100 W G-Band Traveling Wave Tube
This paper presents the design and simulation of a slow wave structure (SWS) for a 100 W folded waveguide (FW) traveling wave tube (TWT) in the G-band. High output power is achieved by reforming FW's bent wave...
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Chapter and Conference Paper
Dynamics via Attosecond Four-Wave Mixing
Attosecond four-wave mixing spectroscopy is a relatively new technique for studying ultrafast dynamics of highly excited states with exquisite temporal precision and spectral resolution. The attosecond four-wa...
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Chapter and Conference Paper
Adaptive Integral Backstep** Control Method for Space Tracking Turntable Based on NDOB
In the low-speed tracking and pointing process of the tracking turntable for “far, dark and small” targets in the space ATP system, the friction disturbance and mechanical parameter change of the turntable cau...
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Chapter and Conference Paper
Research on TDI Mode of Area Array Camera for Space Debris Detection
In order to improve the detection capability of small-scale space debris, the method of simply increasing the camera aperture cannot meet the requirements of satellite resource constraints. In this paper, a ti...
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Chapter
Macroscale Microfabrication Enabled by Nanoscale Morphological Control of Laser Internal Modification
Over the past decades, ultrafast laser internal modification has become a widely adopted approach to enable three-dimensional (3D) micromachining of transparent materials into sophisticated structures and devi...
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Chapter and Conference Paper
Starting from the Sampling Imaging System, A Comprehensive Review on the Remote Sensing Image Super-Resolution Technology
High resolution is the eternal pursuit of remote sensing satellites. At present, the highest resolution of American lock-eye satellite KH-12 has reached 10 cm, but due to the limitation of the diffraction limi...
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Chapter and Conference Paper
Research on Fault Detection Technology of Primary and Secondary Circuit of Switchgear
At present, the primary and secondary equipment integration has been realized in 10 kV switching station and ring main unit, and the functions of telesignalling, telemetering and telecontrol have been realized...
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Chapter
Epi-Growth and Chip Fabrication Process for Micro-LEDs
Light emitting diode (LED) is an excellent light source thanks to its high luminous efficiency and low electricity consumption. LEDs have been widely applied in the categories of lighting, display, biosensor, ...
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Chapter and Conference Paper
Influence of Electromagnetic Characteristics of Sodium Chloride on Temperature Change During Microwave Drying
Since the effect of microwave heating is closely related to the electromagnetic parameters of the material, the heated material often exhibits selective heating. This article uses a multi-mode microwave resona...
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Chapter and Conference Paper
The Response Analysis of Multi-Field Coupled Piezoelectric Energy Harvester Under White Gaussian Noise Excitation
Due to the large vibration of fully mechanized mining equipment, using multi-field coupled piezoelectric energy harvester will efficiently solve the difficulty of wireless monitoring power supply by capture vi...
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Chapter and Conference Paper
Research on Infrared Image Quality Improvement Based on Ground Compensation
Due to the non-linear response of the infrared load device in the low-temperature region, the stripes, appeared in the low-temperature region of the infrared image, will seriously deteriorate the image quality...
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Chapter and Conference Paper
Optical System Design of Space Remote Sensor Based on the Ritchey-Chretien Cassegrain System
With the development of optoelectronic imaging technology, to obtain wider spatial range and higher resolution information of imaged object, space optical remote sensor system gradually developed toward long f...
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Chapter and Conference Paper
An Oversampling Enhancement Method of the Terahertz Image
Terahertz imaging is new trend of space optical remote sensing detection field. However, the resolution of Terahertz imaging is limited by the manufacture level of the Terahertz detector. In this paper we pres...
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Chapter
Deterministic Quantum Devices for Optical Quantum Communication
Photonic quantum technologies are based on the exchange of information via single photons. The information is typically encoded in the polarization of the photons and security is ensured intrinsically via prin...
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Chapter and Conference Paper
CSAR Moving Target Detection with Logarithm Background Subtraction Based on Optimal Azimuth Aperture Analysis
This paper focuses on moving target detection in single-channel circular-SAR (CSAR). The logarithm background subtraction algorithm described in this paper utilizes the overlapped subaperture logarithm image s...
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Chapter and Conference Paper
A Method of Vibration Suppression of a Space Mechanical Cryocooler Based on Momentum Compensation
The space mechanical cryocooler, which is one of the important parts to make sure the detect performance of remote sensors, is used to ensure that infrared detectors can be in stable and low temperature condit...
