ObjectiveDue to the excellent detection performance, levitated optomechanical systems have become intriguing in the field of precision measurement. The detection schemes of such systems mainly contain the balanced photodetector (B
ObjectiveBottom-mounted and all-optical transmitted interferometric fiber-optic hydrophone array systems have the advantages of underwater uncharged and high reliability and are widely used in subsea oil exploration, marine acoust
ObjectiveRecently, tomographic particle image velocimetry (TPIV) has been widely employed in the measurement of the flow field around a cylinder, turbulent boundary layer, flame field, and other flow fields since it is highly accu
ObjectiveIn recent years, fringe projection profilometry (FPP) which can obtain dense three-dimensional (3D) shape information of measured scenes and digital image correlation (DIC) technique that can realize accurate deformation
ObjectiveThe reflected light field information of a rough surface includes the reflected light angle and intensity, which can be used to retrieve the reflection and morphology characteristics of the surface. Therefore, accurate me
ObjectiveCorrosion has a great impact on the strength and durability of steel materials (such as rebar and steel plate). Research reveals the absorption resonance of some iron oxides produced during steel material corrosion with t
ObjectiveFor an aero-engine in operation, the pressure distribution of the exhaust jet flow field is the main parameter of flow characteristics and temperature field. Therefore, the accurate measurement of the exhaust jet flow fie
ObjectiveThere are two primary three-dimensional (3D) measurement error sources of structural light based on the phase shift method: phase shift error and nonlinear error. With the development of a digital projector, the computer
ObjectiveIn the high-precision-long-stroke manufacturing system, precise servo control of a motor determines the machining accuracy during manufacturing. Moreover, the value of the motor subposition is an important signal in the m
ObjectiveThe development of multi-core processors has greatly relieved the pressure of data processing. However, the capacity requirement for data transmission and exchange is still a challenge. Multi-dimensional multiplexing tech
ObjectiveWith the continuously shrinking lithography process nodes, new materials, and technologies are constantly introduced, which exerts different effects on the mark in the lithography machine alignment system. Therefore, impr
ObjectiveAs the revolution of new-generation information technology continues to advance around the world, the data traffic of the Internet is growing exponentially, and the demand for network bandwidth in various fields is increa
ObjectiveStimulated Brillouin scattering (SBS) is an important topic in the field of laser-drive inertial confinement fusion (ICF). SBS can reduce the laser-target energy coupling efficiency, spoil implosion symmetry, and degrade
ObjectiveWith the development of the new energy vehicle industry, laser welding has been widely used in the manufacturing of power batteries for its fast welding speed, small heat-affected zones, and high degree of automation. Dur
ObjectiveLasers for the waveband of 3-5 μm are important in the recognition and detection of gas molecules, free space optical communication, and different frequency generation of terahertz (THz). The typical pollutants and greenh
ObjectiveLight emitting diodes (LEDs) are widely used as backlight illumination sources in liquid crystal displays (LCDs). Narrow-band-emitting green phosphors have become a research focus due to their potential to extend the colo
ObjectiveConfocal laser endomicroscopy (CLE) is an emerging imaging method with a cellular resolution for obtaining histopathological images of structure information on the mucosa in real time. CLE can significantly improve the de
ObjectiveThis paper proposes a novel asymmetric microstructure different from the existing light-trapping structures. By reducing the specular reflection, the microstructure can improve the stray light suppression performance at a
ObjectiveRecently, additive/subtractive hybrid manufacturing has arisen to harness the merits of both additive manufacturing and traditional subtractive manufacturing. In this study, a novel hybrid machine tool that combines selec
ObjectiveAs a photoelectric image sensor widely used in the field of aeronautics and astronautics, charge-coupled device (CCD) has attracted much attention due to its proton irradiation damage in the space environment. Performance
ObjectiveA tunable stabilized optoelectronic oscillator (OEO) based on stimulated Brillouin scattering (SBS) is proposed to solve the low stability problem of microwave signals output by the OEO. An OEO is affected by the characte
ObjectiveRadar cross section (RCS) is an important physical quantity to measure the radar echo capability of the target. To reduce the RCS value of the target object is to achieve RCS reduction, which has important applications in
ObjectiveObtaining narrow-linewidth (high-Q-factor) plasmon resonances in metal nanostructures is of crucial importance for improving device performance, which is limited by the intrinsic Ohmic and radiative losses of metal nanost
ObjectiveTunability is an important requirement for metasurface application. In recent years, adjustable materials have been gradually used in the composite design of metasurface structures to achieve multi-functional switching. H
ObjectiveTerahertz wavefront manipulation, particularly flexible switching of terahertz wavefronts through programmable metasurface, has good prospects for application. Electricity, temperature, and light control are the most comm
ObjectiveWith the advantages of high flexibility, high security, and large communication bandwidths, vortex beams play an important role in many fields, such as quantum entanglement, spatial optical communications, particle manipu
ObjectiveThe development of deep space exploration and interstellar flight technology imposes higher requirements on the performance of spacecraft, especially on the energy power system and wireless communication system. However,
ObjectiveHigh-current measurement technology is widely used in the field of industry, quality inspection, national defense, and large scientific facilities. The current up to dozens or hundreds of kA and even MA magnitude requires
ObjectiveThe OH radicals produced by HONO photolysis are important oxidants in atmospheric reactions. The sources and mixing ratios of OH radicals are closely related to the level of HONO. The sources of HONO are still unclear und
ObjectivePreparing chemical films using the sol-gel method is very important in inertial confinement fusion laser devices. The antireflective (AR) films could be coated on glass elements such as target mirror, anti-splash plate, b
ObjectiveColor matching functions (CMFs) play a critical role in color science and management. Accurate colorimetry starts with accurate CMFs. Due to changes in the cone pigment optical densities and macular pigment at different r
ObjectiveFresnel zone plate (FZP) is one of the most important components in X-ray microscopic imaging systems, which can realize high-efficiency and high-resolution three-dimensional (3D) nondestructive imaging by diffraction pri