- Нет данных
Русский
- English
- 简体中文
- 繁体中文
- Français
- Русский
- Italiano
- 日本語
- 한국어
- Português
- Deutsch
- Español
- Türkçe
- Ελληνικά
- Nederlands
- Tiếng Việt
- Polski
The pump source, gain material, and resonant cavity are the three elements that make up a laser. Due to the selective effect of the resonant cavity on the lasing frequency, multi longitudinal mode operation is one of the characteristics of fiber lasers based on traditional resonant cavity structures, manifested as periodic beat peaks in the radio frequency (RF) spectrum and periodic fluctuations i...
Infrared imaging and sensing technology can be used in various fields, from astronomy to chemistry. For example, when infrared light passes through a gas, sensing changes in light can help scientists identify specific properties of the gas. The use of visible light may not always achieve this sensing.However, existing infrared sensors are bulky and inefficient. In addition, due to the use of infra...
Recently, the research team of Yang Shanglu from the Laser Intelligent Manufacturing Technology R&D Center of the Chinese Academy of Sciences Shanghai Institute of Optics and Fine Mechanics has made new progress in the laser assisted connection of metal carbon fiber composite heterostructure joints.The team used an adjustable flat top rectangular semiconductor laser as a heat source to achieve...
Additive manufacturing (AM) has made it possible to manufacture complex personalized items with minimal material waste, leading to significant changes in the manufacturing industry. However, optimizing and improving additive manufacturing processes remains challenging due to the complexity of design, material selection, and process parameters. This review explores the integration of artificial int...
BEIJING, Dec. 19 (Xinhua) -- A team of Chinese researchers used a novel theory to invent a new type of ultrathin optical crystal with high energy efficiency, laying the foundation for next-generation laser technology.This photo taken on Dec. 15, 2023 shows a Twist Boron Nitride (TBN) crystal placed on a piece of fused silica in Peking University, Beijing, capital of China. A team of Chinese rese...