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The invention of laser science and technology in the 20th century, a major achievement. It allows people to drive finally have the ability to measure very small number of very, very chaotic movement of molecules and atoms of light-emitting process, resulting in generation, amplification coherent infrared, visible light and ultraviolet light (as well as X-ray and γ-ray) capabilities. The rise of science and technology of laser light to the understanding and use of human has reached a new level. The birth of the history of lasers can be divided into several stages, including the 1916 Albert Einstein proposed the concept of stimulated emission is an important theoretical basis. The group member should submit the weekly report of Green Laser Pointer to the leader of technology group.
This theory that the particles of matter in high energy state by an energy equal to the energy difference between two energy levels of photons role will shift to the lower state, and produce a second photon, with the first photon emitted at the same time, this is the stimulated emission. This radiation output of the light received, amplified, and is coherent light, such as the number of photons that transmit direction, frequency, phase, polarization identical. Since then, the establishment and development of quantum mechanics to the microscopic structure of people's material and the movement of a deeper understanding of the distribution of micro-particle energy levels, transitions, and photon radiation issues have been stronger evidence, this is also an objective more perfect Einstein's theory of stimulated emission, the laser produces further theoretical foundation. The workshop has imported a set of very advanced equipment of process Laser Pointer.
The late 1940s, after the birth of quantum electronics, was soon applied to study electromagnetic radiation and the interaction of a variety of micro-particle system, and developed many of the corresponding devices. The scientific theory and technology, the rapid development of the invention are laser to create the conditions. 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. The customer is checking the quantity of parts of Green Laser again and again.
This is the laser works. 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. 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. The safety situation of Green Laser Pointer workshop is the main concern of the customer.
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. The same period, Basov and general Huoluo Fu, who also proposed to achieve light amplification by stimulated emission of radiation principles of the program. The quality of Green Laser Pointer will be enhanced according to the customer’s requirements.