There are five sections in total and it is suggested that the sections are read in the sequence 1 to 5. Lasers come in a wide variety of forms, the detailed processes that go on inside them differing greatly from one type of laser to another. In this tutorial, an attempt has been made to concentrate on those features that lasers have in common. It explains the basic physical principles of laser operation, and describes many types of lasers, and many applications of lasers. The powerful laser is used to take measurements which allow air density, pressure, and temperature to be determined and will be used to address the question of global warming in addition to contributing to our ability to predict weather.
Lasers offer new ways to investigate and manipulate cells.
This article discusses how researchers are using lasers to grasp single cells and tinier components in vises of light while delicately altering the held structures.