Bessel beam array has been widely used in femtosecond laser processing, particle capture, optical microscopy, optical communication, and other fields. Especially in the field of industrial processing, the Bessel beam plays an impo

Photon counting imaging technology is a new type of active imaging technology, which obtains depth information of the target by accumulating histograms of echo photons. It can be combined with Time-correlated Single-photon Countin

Low-light true color image enhancement is an important branch in image processing. The images obtained in low-illuminance environments often have low brightness, low contrast, noise, and color distortion. Due to the complexity and

The performance of an optical imaging system is typically characterized by the intensity Point Spread Function (PSF) or Optical Transfer Function (OTF). But the Coherent Transfer Function (CTF) is better for describing the coheren

With the development of new display technology and the continuous warming of the concept of metauniverse, micro-display has been widely used in near-eye display fields such as virtual reality and augmented reality. The silicon-bas

Using a vision system to locate a target is a necessary step for its three-dimensional detection of the target. The traditional single-aperture imaging system can only obtain the geometric image information of the target. A compou

Tunable mid-infrared lasers based on nonlinear optical frequency conversion play a vital role in application fields including environment monitoring, remote sensing and biomedical diagnosis. The long-term development of near-infra

In this paper, an 1 064 nm, 148.7 W, 8 ps laser is obtained through a multi-stage end-pumped Nd:YVO4 solid-state laser amplification system. Further a 1mm-diameter spot is coupled to a LBO crystal for frequency doubling, and a 95

All-solid-state single-frequency pulse lasers have been widely used in coherent laser detection, laser remote sensing, laser ranging, and other fields due to their advantages of narrow line width, long coherent length, high stabil

In the chemical industry, accurate measurement of the components and amounts of gas products in the C2H2 preparation by CH4 cracking is critical for monitoring reaction progress and assuring the quality of C2H2 production. The par

As an important technique for in-situ wall diagnostics in tokamaks, Laser-Induced Breakdown Spectroscopy (LIBS) has been demonstrated to effectively detect fuel retention and element distribution on the wall surface of the Experim

In this study, the feasibility of detecting skin water content based on spatial displacement Raman spectroscopy and portable fiber optic spectrometer was explored. A device was constructed that can achieve an optimal spatial displ

The ultraviolet imaging spectrometer operates within a wavelength range of 340 nm to 390 nm, with its components serving as the core of the entire instrument. This design contributes to a more compact configuration of the device.

Structural color can be created when the ordered microstructure of an object interacts with incident light. Compared to the traditional pigment colors, it is bright, long-lasting, and environmentally friendly. As a result, it is o

Due to the large distance between the electrons and the nucleus and the large electric dipole moment, the interatomic interaction of the Rydberg atoms are weaker than those of the ground-state atoms. Therefore, the external electr

As basic physical quantities, time and frequency are the research basis of many applied fields, such as verification of basic physics, clock-based geodetic survey, positioning and navigation. Optical fiber is an ideal medium for h

As one of the most important energy storage technologies today, the safety and reliability of lithium batteries have always been of great concern. The thermal stability and pressure stability of lithium batteries are important par

Nowadays, three-dimensional measurement of highly reflective surface is an important part of industrial measurement. With the continuous development of automobile assembly, precision polishing, free-form surface processing and oth

With the rapid development of computer vision, object detection has made remarkable achievements in 2D vision tasks, but it still can not solve the problems such as light changes and lack of depth that occur in actual scenes. The

Differential computing is of great significance for data analysis and processing, especially in image edge recognition and extraction. Edge enhancement technology is particularly useful in compressing data, checking objects for de

Most of the current research can only realize the asymmetric transmission of light singly, in the face of the demand for multifunctional application scenarios, the design of multifunctional integrated devices has become a developm

The all-optical logic gate is the core component of the photonic computer, optical signal processing, and all-optical network. Based on the photonic crystal, the all-optical logic gate has attracted much attention due to its simpl

Research on pulsed magnetic fields dates back to the early 20th century. Nowadays, ultra-short pulsed magnetic fields are being utilized to better understand ultrafast physical microprocesses, such as domain motion and spin-orbit

When a pulse current with a rise time of about 100 ns and an amplitude of tens of MA is applied to a wire array or jet load, the load will rapidly ionize and form a plasma. Due to the Lorentzian force, these plasms will rapidly im