What is optical interferometry?

Optical interferometry is the use of interaction between two or more energy waves to collect information. Either they come from the same source, or they have a similar frequency and interference generated on the measuring device offers important data about their behavior and resource properties. Experiments with this technique date back to the beginning of the 18th century, which played a key role in the development of theories about the nature of the universe. Scientists can apply optical interferometry to a number of measuring and calibration tasks. Each telescope collects light from the star and brings it to an interferometer that combines information. The astronomer may notice variations in the pictures and collect the position, size and stars. These observations may be an alnock astronomer to determine whether the star is approaching or retreating, and watching its movement through the universe.

The word "optical" in the title can be misleading because it can create the impression that optical INterferometry involves working with visible light. In fact, it is also possible to collect energy in invisible wavelengths using specialized optical devices. This may include radio waves that are widely used in astronomy to collect data on extremely distant objects. Scientists can work with energy from a source of interest or can generate energy using tools such as lasers to perform measures and calibration of the device.

You can combine many pieces of equipment such as a bank of radio telescopes, in optical interferometric work. Since the wavelengths are combined and interference develops, observers can detect information in the edges of data that provide insight into the nature of the observed resources. This process can be useful for everything from extremely accurate measuring phenomena on Earth to testing theories about the composition of distant stars.

Some early experiments with astronomical optical interferometry illustrate that prechangesThe theory of the composition of the space was incorrect. For many centuries, people believed that the atmosphere was present as a "ether" and served as a conductor of sound and light. In the 18th century observation acquired with the help of optical interferometry caused some holes to theory and at the age of 20.