We present the concept of coherence—temporal and spatial—and compare laser radiation with thermal light. After that, we treat the Gaussian beam and the higher transverse modes. An overview of typical laser parameters is given. Finally, we deal with the dangers of laser radiation....
In this contribution we will focus on the investigation of atmospheric properties using laser radiation ranging from the ultra-violet to the infrared spectral region. The laser is an ideal instrument for this purpose due to its outstanding properties such as large spectral brightness and small ...
A Superintense Laser-Plasma Interaction Theory Primer The continuous trend towards higher and higher laser intensities has opened the way to new physical regimes and advanced applications of laser-plasma inter... A Macchi - Springer Netherlands 被引量: 27发表: 2013年 Radiation from sub-Larmor scale...
The angular spread of the coherent radiation beam in the plane perpendicular to the optically excited plane is 9° which corresponds to a coherently emitting region of 20 μ, over three times larger than the 6 μ for the diode laser. 展开 ...
mprovingDie ectric ropertiesofTa25 eramicsbyLaser rradiation JIling-fei WANGWei YUZhen- ong JIANGYi- ian ee Nationa CenteroflaserTechno ogy Bei ingUniversityofTechno ogy Bei ing100022 China Abstract mProvin9hedielecricProPeriesofta2 5ceramicsby 2laserirradiaionwasinvesi9aed. theemPerauredePendencean...
In Chapter 1 it was stated that the most characteristic properties of laser beams are (i) monochromaticity, (ii) coherence (spatial and temporal), (iii) directionality, (iv) brightness. The material presented in earlier chapters allows us to now examine these properties in more detail and comp...
The results were compared with the case of a conventional low-magnification unstable resonator. It was found that radiation with a low angular divergence cannot be obtained from a laser with an unstable resonator and additional feedback.关键词: Experimental/ laser beams laser cavity resonators ...
Physical Optics, or the Nature and Properties of Light: A Descriptive and Experimental Treatise A new theory has been developed for the nature and properties of radiation which is the modified corpuscular theory and named as corpuscular sphere theory of light and radiation. All the properties of ...
Although the notion of excimer laser atherectomy (ELA) first appeared in the early 1980’s, almost 10 years passed before the technique became commercially available. As with many new technologies, improvements in the clinical application of ELA relied o
The spectral and temporal characteristics of light emission from laser ablated porous silicon (LAPS) films critically depend on the chemical composition of the atmosphere in which they were fabricated. Luminescent characteristics, spatial structure, and chemical composition of LAPS were compared with the...