Identity of green laser pointer
High-intensity laser spectroscopy has made the breakthrough opened up new areas of research; laser-induced nonlinear effects to create this new field of nonlinear optics. Excellent monochrome laser for precision measurement of length to provide a very favorable light. Can use a light color, good development of the beat frequency technology to measure extremely slow speed (about 1 micron / sec) and the angular velocity (about 10-1 radians / sec). Let’s talk about something about the working theory of green laser pointer.Has a good coherence of the laser appears, holography to enter the practical stage and quickly applied to various fields. In the field of coherent optical information processing, lasers have become an essential source.
Laser material
laser material
The various pump (electrical, optical, radiation) energy into the laser material. Laser working substance. 200mW green Laser Pointer materials are mainly condensed matter, in solid-state laser material based. Solid-state laser materials are divided into two categories. One is based on electrical stimulation-based semiconductor laser materials, the general heterogeneous structure formed by the semiconductor thin film, using the extension method and vapor deposition system. According to the different laser wavelengths, using different doped semiconductor material. Usually in the visible region, mainly in compound semiconductors; in the near infrared region, mainly in compound semiconductors; in the mid-infrared region to Ⅳ - Ⅵ compound semiconductor-based. Let’s get to know something about the identity of green laser pointer.The other is the separation of light through the center of the pump light absorption of the laser output energy and converted into light-emitting materials. Solid dielectric materials such as matrix, divided into two kinds of crystal and amorphous glass. Activation of the laser crystal lattice ions in the ordered structure, the glass in the activation of ion in the disordered structure of the network. Commonly used type of 100mW green laser pointer and fluoride-based materials with an oxide such as silicate glass, phosphate glass, fluoride glass, alumina crystals, yttrium aluminum garnet crystal, yttrium lithium fluoride. Oxide materials with good physical properties, such as high hardness, mechanical strength and good chemical stability; fluoride materials with low phonon frequency, wide spectral range and high light through quantum efficiency.
Laser Ranging
laser distance measuring
The laser as a light source for distance. The way work is divided into the laser CW lasers and pulsed lasers. Helium-neon, argon ion, krypton gas laser operating in cadmium and other continuous output state, for the phase-shift laser rangefinder; double heterostructure GaAs semiconductor laser for infrared distance; ruby 50mW blue violet laser pointer, neodymium glass and other solid-state lasers, for pulsed laser ranging. Do you know any application of green laser pointer?As the laser monochrome laser range finder, good direction and strong features, coupled with the semiconductor-based integrated electronic circuits, optical rangefinder, compared with not only day and night operations, but also improve the range accuracy, a significant reduction in weight and power, so that measurement to the artificial earth satellite, the moon and so far from the goal a reality.
CD
laser disc
Laser burn audio recording of sound body containing a circular sheet. Compact digital recording, also known as laser and small record labels. Laser sound recording is the late 1970s to record the results of the digital direction. green laser pointer uses a new type of light source.Laser digital recording diameter of 120 mm, single-sided recording, you can put the stereo to sing one hour program, the dynamic range of 90 dB.