laser pointer will not influence to take pictures of the stars

laser pointer will not influence to take pictures of the stars.
In the vacuum energy of a photon e, momentum P, then they light frequency, the relationship between the wavelength: the use of multimedia. With a rich picture of the classical theory for the Ming. Radiative transition: emission or absorption of photons so that the transitions between atomic energy levels caused by the phenomenon. Non-radiative transitions: when the atomic transition at different energy levels is not accompanied by photon emission and absorption, but the extra energy to the other atoms or other atoms to pass it to absorb the energy. First review the four quantum numbers of atoms, and then the degeneracy, degeneracy defined. Clarify the circumstances in thermal equilibrium, the number of particles in high-energy state is always less than the number of particles in the low-energy state of the law. Finally atomic radiative transition and non-radiative transitions. The consumer can take quality of laser pointer into account when buying laser pointer .
Understand the interaction between light and matter, master the interaction of the laser stimulated emission process is the physical basis of the interaction between light and matter according to the physical model of thermal equilibrium blackbody cavity analysis of the process, which lead to three Einstein coefficients the relationship between. Teaching content of this lesson: classical dipole radiation theory the concept of reference, reflecting the light emission and absorption process of the law; the phenomenon of blackbody radiation experiments. laser pointer is also the best promotion gifts of projectors and laptops.
First introduce the classical radiation theory, reflecting the light emission and absorption process of the law, and later blackbody radiation, focusing on the interactions between light and matter, Einstein particle model to explain clearly the three electromagnetic field interaction with matter characteristics of the process, the coefficient, the coefficient of the physical meaning. Finally, export the spontaneous emission power and the power of stimulated emission calculation and comparison, guide students to discuss how to create the conditions, can increase the level of stimulated emission, the laser to achieve the purpose. Understand the spectrum of linear optical effects and the role of material, analysis of line broadening caused by various physical mechanisms, and according to different physical processes derived g (ν, ν.) Of the specific functional form.