etalon

See also: Etalon and étalon

English

Diagram of an etalon

Etymology

From French étalon (“measuring gauge, standard”).

Noun

etalon (plural etalons)

1. An optical device containing parallel mirrors, used as a narrow band filter, often in laser design.
   • 2004, S. C. Gupta, Textbook On Optical Fiber Communication And Its Applications, page 153:

     It will be shown that the simple theory outlined in the preceding paragraph, which is applicable to single-plate etalons, can be used to predict the main features of the spectral curve of a multi element etalon.

   • 2006, Walter Koechner, Solid-State Laser Engineering, page 264:

     The laser output will be composed of longitudinal modes that fall inside the transmission band of the etalon, hence a narrowing of the laser line width is observed.

   • 2009, V. Rajendran, Engineering Physics, page 7.15:

     The next step of this experiment is to compare the etalon m₁m₂ (shortest length) with the etalon m₃m₄ (the next one). For this two etalons are arranged side by side as shown in Fig. 7.13a.

Synonyms

• Fabry-Pérot interferometer

See also

• étalon language

Anagrams

• late on, lean-to, tolane

Crimean Tatar

Etymology

Borrowed from French étalon.

Noun

etalon

1. prototype, standard.

Declension

Declension of etalon

	singular	plural
nominative	etalon	etalonlar
genitive	etalonnıñ	etalonlarnıñ
dative	etalonğa	etalonlarğa
accusative	etalonnı	etalonlarnı
locative	etalonda	etalonlarda
ablative	etalondan	etalonlardan

References

• Mirjejev, V. A., Usejinov, S. M. (2002) Ukrajinsʹko-krymsʹkotatarsʹkyj slovnyk [Ukrainian – Crimean Tatar Dictionary]‎^[1], Simferopol: Dolya, →ISBN
• “etalon”, in Luğatçıq (in Russian)

Romanian

Etymology

Borrowed from French étalon.

Noun

etalon n (plural etaloane)

1. standard

Declension

Declension of etalon

	singular		plural
	indefinite articulation	definite articulation	indefinite articulation	definite articulation
nominative/accusative	(un) etalon	etalonul	(niște) etaloane	etaloanele
genitive/dative	(unui) etalon	etalonului	(unor) etaloane	etaloanelor
vocative	etalonule		etaloanelor