Pageup function of green laser pointer has been successfully developed
If a system is in a state of high energy particles than the low-energy states of particles, the particles appeared inversion state. So long as there is a photon trigger, it will force a high-energy states of atoms in the stimulated emission of a photon with the same, these two photons will lead to other atoms by stimulated emission of radiation, thus achieving a light amplification; if the rate of the appropriate role of the feedback resonator oscillation light is formed, which emits a laser. This is the laser works. The company has the extremely strict requirement for the production management of green laser pointer .
In 1951, American physicist Purcell and Pound in the experiment successfully created a population inversion, and received per second by stimulated emission of 50 kHz. Later, the U.S. physicist Charles Townes and the Soviet physicist ? Masuo Fu and general Huoluo Fu has proposed the use of atomic and molecular theory of stimulated emission to generate and amplify microwave design. However, the microwave spectroscopy are mostly theoretical and experimental study of "pure science", can successfully developed for the laser in the end, at that time still very slim. But after all the efforts of scientists with the results. green laser pointer should be maintained well in the daily use.
In 1954, the previously mentioned American physicist Townes finally made the first molecular beam ammonia maser, successfully pioneered the use of molecular and atomic systems as coherent microwave amplifier or oscillator precedent. Townes, who developed the maser produced only 1.25 cm wavelength of the microwave power is very small. Production and technological development needs to promote the scientists to explore new luminescence mechanism to generate new high performance light source. In 1958, Townes and sister Fu Ese ? Xiaoluo the maser and optical, spectroscopy combined theoretical knowledge, the paper introduces the open cavity of key recommendations, and to prevent the laser coherence, direction , line width, and noise properties. Some more appendixes of 100mW green laser pointer will be signed in the design liaison meeting of 50mW blue violet laser pointer .
The same period, Basov and general Huoluo Fu, who also proposed to achieve light amplification by stimulated emission of radiation principles of the program. Since then, many laboratories the world have been involved in the development of a fierce competition to see who can successfully build and operate the world's first laser. In 1960, the American physicist Theodore Maiman in Miami, Florida ? research laboratory, barely won the worldwide development of competition. He used to stimulate a high-strength flash tube inside the ruby crystal of chromium atoms, resulting in a considerable concentration of the thin red beam of light, when it is fired at a certain point, it can reach higher temperatures than the sun. "Maiman design" caused the scientific community's shock and suspicion, because scientists have been looking and looking forward to a helium-neon laser. The technical problem of green laser pointer is very critical to quality.
Although Maiman introduced the first practical laser scientists in the field, but in court, on in the end who invented the technology debate, once aroused much controversy. One contender is the "Laser" ("stimulated emission type optical frequency amplifiers," the acronym) ? Gordon Gould, inventor of the term. He studied at Columbia University Ph.D. 1957, made the word. At the same time, the inventor of the maser Townes and Xiao Luo also developed the concept of the laser. Final decision by the court, Townes paperwork for research in Gould as early as 9 months to become the winner. But Maiman's invention of the laser power has not been shaken. Quality of 200mW green Laser Pointer will determine ordering quantity of green laser pointer .
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