Microwave optics and pulsed-wave detection

1994 ◽  
Author(s):  
George C. Giakos ◽  
Thomas K. Ishii
Keyword(s):  
Wave Detection ◽  
Microwave Optics

Ultrasonic Wave Detection in Atmospheric Pressure Plasma Using Fraunhofer Diffraction Effect

PIERS Online ◽  
2010 ◽  
Vol 6 (7) ◽  
pp. 636-639
Author(s):  
Toshiyuki Nakamiya ◽  
Fumiaki Mitsugi ◽  
Shota Suyama ◽  
Tomoaki Ikegami ◽  
Yoshito Sonoda ◽  
...  
Keyword(s):  
Ultrasonic Wave ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Diffraction Effect ◽  
Fraunhofer Diffraction ◽  
Wave Detection ◽  
Pressure Plasma

Uncooled bolometer for millimeter-wave detection using manganese-cobalt-nickel-oxide thin film

2020 ◽  
Vol 13 (12) ◽  
pp. 124002
Author(s):  
Tao Hu ◽  
Wanli Ma ◽  
Jing Wu ◽  
Zhibo Zhang ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Thin Film ◽  
Nickel Oxide ◽  
Millimeter Wave ◽  
Oxide Thin Film ◽  
Wave Detection ◽  
Cobalt Nickel ◽  
Cobalt Nickel Oxide ◽  
Nickel Oxide Thin Film

scholarly journals Low Power Cusped Field Thruster Developed for the Space-Borne Gravitational Wave Detection Mission in China

2021 ◽  
Vol 11 (14) ◽  
pp. 6549
Author(s):  
Hui Liu ◽  
Ming Zeng ◽  
Xiang Niu ◽  
Hongyan Huang ◽  
Daren Yu
Keyword(s):  
Low Power ◽  
Gravitational Wave ◽  
Attitude Control ◽  
High Efficiency ◽  
Experimental Investigations ◽  
Attitude Control System ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wide Range ◽  
Institute Of Technology

The microthruster is the crucial device of the drag-free attitude control system, essential for the space-borne gravitational wave detection mission. The cusped field thruster (also called the High Efficiency Multistage Plasma Thruster) becomes one of the candidate thrusters for the mission due to its low complexity and potential long life over a wide range of thrust. However, the prescribed minimum of thrust and thrust noise are considerable obstacles to downscaling works on cusped field thrusters. This article reviews the development of the low power cusped field thruster at the Harbin Institute of Technology since 2012, including the design of prototypes, experimental investigations and simulation studies. Progress has been made on the downscaling of cusped field thrusters, and a new concept of microwave discharge cusped field thruster has been introduced.

scholarly journals China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Keyword(s):  
Gravitational Wave ◽  
Hubble Constant ◽  
Gravitational Wave Detector ◽  
Expanding Universe ◽  
Satellite Mission ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wave Detector ◽  
Wave Antenna ◽  
Gravitational Wave Antenna

AbstractIn this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper.

scholarly journals Small-Sized Interferometer with Fabry–Perot Resonators for Gravitational Wave Detection

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1877
Author(s):  
Nikolai Petrov ◽  
Vladislav Pustovoit
Keyword(s):  
Correlation Function ◽  
Gravitational Waves ◽  
Laser Interferometer ◽  
Zero Order ◽  
Wave Detection ◽  
Resonant Modes ◽  
Fabry Perot ◽  
Spatially Distributed ◽  
Wave Laser ◽  
Higher Sensitivity

It is highly desirable to have a compact laser interferometer for detecting gravitational waves. Here, a small-sized tabletop laser interferometer with Fabry–Perot resonators consisting of two spatially distributed “mirrors” for detecting gravitational waves is proposed. It is shown that the spectral resolution of 10−23 cm−1 can be achieved at a distance between mirrors of only 1–3 m. The influence of light absorption in crystals on the limiting resolution of such resonators is also studied. A higher sensitivity of the interferometer to shorter-wave laser radiation is shown. A method for detecting gravitational waves is proposed based on the measurement of the correlation function of the radiation intensities of non-zero-order resonant modes from the two arms of the Mach–Zehnder interferometer.

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