The manager is concerning about the safety consideration

The manager is concerning about the safety consideration of laser pointer .
To detect atoms, tuning another laser beam, the ionization. Ionization out of the free electron gas proportional counter (or vacuum electron multiplier tube) to be detected. This single-atom detection technology will become a powerful means of analytical chemistry has been applied in many aspects of science and technology (such as ultra-pure materials extraction, environmental pollution monitoring, etc.). LIDAR spectroscopy using laser long-distance transmission, without the propagation characteristics of laser spectroscopy, remote sensing can be achieved on the long-range target (sample). Laser remote sensing is one of the important applications of laser spectroscopy, lidar spectroscopy developed in the 1970s, is one of them, it has been success in pollution monitoring. Lidar spectroscopy, Raman scattering spectra can also be based on the resonance fluorescence spectrum. The safety consideration of laser pointer has been taken into consideration.
Its working principle is the laser emission tunable lasers to test pollutants, pollutants atoms or molecules emit fluorescence (or scattered light), the return of fluorescence (or scattered light) by the large diameter quasi-direct the telescope system and photomultiplier tubes and other electronic equipment to accept, signal analysis and recording. As the laser radar signals, including Rayleigh and Mie scattering, Raman scattering and fluorescence signals, the signal can be measured to reflect the state of the target. Heterodyne spectroscopy and spectroscopy of laser radar are active laser telemetry, it is through the analysis issued by the laser excitation spectrum of information to make judgments on the composition and structure of the target (sample); a passive laser telemetry technology, it is emitted by the distant goal spectral information to the target (sample) for diagnosis, heterodyne spectroscopy fall into this category. This kind of laser pointer is very effective.
The basic principle is the heterodyne method in the electronics used in the field of optics, namely the level oscillator with tunable lasers, it mixed together with the signal light, the optical signal after mixing with the square-law detector acceptance. Mixed-signal addition to the self-mixing of two light sources, but also caused by an RF signal, which reflects the information contained in the external signals on the laser frequency. Electronics processing can make this device a very narrow filter, and is adjustable. Such a device has been used in the determination of atmospheric pollutants in the infrared emission spectra, it can measure the instantaneous concentration of a variety of components.