Reference beam
≈ 2 min read
Names in other languages
- uzAsos (o'quvchi) nur
- EspañolRayo de referencia
- EnglishReference beam
Article bodies are English and are not machine-translated. A name in another language is not a translation of the article.
A reference beam is a laser beam used to read and write holograms. It is one of two laser beams used to create a hologram. In order to read a hologram out, some aspects of the reference beam (namely its angle of incidence, beam profile and wavelength) must be reproduced exactly as when it was used to write the hologram. As a result, usually reference beams are Gaussian beams or spherical wave beams (beams that radiate from a single point) which are fairly easy to reproduce. The other beam used to write a hologram is the signal beam or object beam.
A reference beam is a laser beam used to read and write holograms. It is one of two laser beams used to create a hologram. In order to read a hologram out, some aspects of the reference beam (namely its angle of incidence, beam profile and wavelength) must be reproduced exactly as when it was used to write the hologram. As a result, usually reference beams are Gaussian beams or spherical wave beams (beams that radiate from a single point) which are fairly easy to reproduce. The other beam used to write a hologram is the signal beam or object beam. ==References== ===Works cited===
Text derived from https://en.wikipedia.org/w/index.php?oldid=1296192606 under CC BY-SA 4.0; modifications have been made.