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Excitation of second harmonics in a wide spectrum
Excitation of second harmonics in a wide spectrum Since the discovery of second-order nonlinear optical effects in the 1960s, has aroused wide interest of researchers, so far, based on the second harmonic, and frequency effects, has produced from the extreme ultraviolet to the far infrared band o...Read More -
Polarization electro-optic control is realized by femtosecond laser writing and liquid crystal modulation
Polarization electro-optic control is realized by femtosecond laser writing and liquid crystal modulation Researchers in Germany have developed a novel method of optical signal control by combining femtosecond laser writing and liquid crystal electro-optic modulation. By embedding liquid crystal ...Read More -
Change the pulse speed of the super-strong ultrashort laser
Change the pulse speed of the super-strong ultrashort laser Super ultra-short lasers generally refer to laser pulses with pulse widths of tens and hundreds of femtoseconds, peak power of terawatts and petawatts, and their focused light intensity exceeds 1018 W/cm2. Super ultra-short laser and its...Read More -
Single photon InGaAs photodetector
Single photon InGaAs photodetector With the rapid development of LiDAR, the light detection technology and ranging technology used for automatic vehicle tracking imaging technology also have higher requirements, the sensitivity and time resolution of the detector used in the traditional low light...Read More -
Structure of InGaAs photodetector
Structure of InGaAs photodetector Since the 1980s, researchers at home and abroad have studied the structure of InGaAs photodetectors, which are mainly divided into three types. They are InGaAs metal-Semiconductor-metal photodetector (MSM-PD), InGaAs PIN Photodetector (PIN-PD), and InGaAs Avalanc...Read More -
High refrequency extreme ultraviolet light source
High refrequency extreme ultraviolet light source Post-compression techniques combined with two-color fields produce a high-flux extreme ultraviolet light source For Tr-ARPES applications, reducing the wavelength of driving light and increasing the probability of gas ionization are effective mean...Read More -
Advances in extreme ultraviolet light source technology
Advances in extreme ultraviolet light source technology In recent years, extreme ultraviolet high harmonic sources have attracted wide attention in the field of electron dynamics due to their strong coherence, short pulse duration and high photon energy, and have been used in various spectral and...Read More -
Higher integrated thin film lithium niobate electro-optic modulator
High linearity electro-optic modulator and microwave photon application With the increasing requirements of communication systems, in order to further improve the transmission efficiency of signals, people will fuse photons and electrons to achieve complementary advantages, and microwave photonic...Read More -
Thin film lithium niobate material and thin film lithium niobate modulator
Advantages and significance of thin film lithium niobate in integrated microwave photon technology Microwave photon technology has the advantages of large working bandwidth, strong parallel processing ability and low transmission loss, which has the potential to break the technical bottleneck of ...Read More -
Laser ranging technique
Laser ranging technique Principle of laser rangefinder In addition to the industrial use of lasers for material processing, other fields, such as aerospace, military and other fields are also constantly developing laser applications. Among them, the laser used in aviation and military is increasi...Read More -
Principles and types of laser
Principles and types of laser What is laser? LASER(Light Amplification by Stimulated Emission of Radiation) ; To get a better idea, take a look at the image below: An atom at a higher energy level spontaneously transitions to a lower energy level and emits a photon, a process called spontaneous ...Read More -
Optical multiplexing techniques and their marriage for on-chip and optical fiber communication
The research team of Prof. Khonina from the Institute of Image Processing Systems of the Russian Academy of Sciences published a paper entitled “Optical multiplexing techniques and their marriage” in Opto-Electronic Advances for on-chip and optical fiber communication: a review. Profe...Read More
