The spelling of the word "laser structure" is straightforward, but its pronunciation can be tricky. "Laser" is pronounced /ˈleɪzər/ (lay-zer), with the emphasis on the first syllable. "Structure" is pronounced /ˈstrʌk.tʃər/ (struk-chur), with the emphasis on the second syllable. When combined, the word "laser structure" is pronounced /ˈleɪzər ˈstrʌk.tʃər/ (lay-zer struk-chur). This term refers to the specific arrangement of components that make up a laser, which is an acronym for light amplification by stimulated emission of radiation.
Laser structure refers to the physical arrangement or configuration of components that comprise a laser device. A laser, or Light Amplification by Stimulated Emission of Radiation, is a device that emits coherent, focused, and monochromatic light through a process of optical amplification. Its structure determines the functionality and performance of the laser system.
The laser structure typically consists of several key components. These include an active medium, such as a solid-state crystal, gas mixture, or semiconductor material that produces the light amplification. The active medium is surrounded by mirrors, known as the optical resonator, which reflect and guide the light to create the laser beam. The optical resonator usually comprises two mirrors, one partially reflective and the other fully reflective, to create the desired feedback for amplification.
Furthermore, the laser structure incorporates a pump source, which provides the energy needed to excite the atoms or molecules within the active medium to a higher energy level. This excitation initiates the process of stimulated emission, where photons are emitted in-phase with the incident light, resulting in coherent and amplified output.
The design and arrangement of these components within the laser structure are crucial for achieving specific laser characteristics, such as wavelength, power, and beam quality. Different laser types have varying structures that are optimized for specific applications. For example, gas lasers employ a discharge tube and gas mixture as the active medium, while solid-state lasers utilize a solid crystal or glass medium.
In summary, the laser structure refers to the arrangement of components, including the active medium, mirrors, and pump source, which collectively enable the creation of a laser beam with specific properties and capabilities.
The word "laser" is actually an acronym derived from "light amplification by stimulated emission of radiation". The term was coined by Gordon Gould in 1957.
The word "structure" comes from the Latin word "structura", meaning "arrangement" or "building". It has been used in English since the mid-15th century.
So, when we combine the two terms to form "laser structure", it refers to the arrangement or composition of components within a laser system or device.