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What is a Fabry-Pérot etalon?
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What is a Fabry Perot interferometer?
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What is an optical etalon?
In optics, a Fabry–Pérot interferometer (FPI) or etalon is an optical cavity made from two parallel reflecting surfaces (i.e.: thin mirrors). Optical waves can pass through the optical cavity only when they are in resonance with it.
An optical etalon (also called Fabry–Pérot etalon) was originally a Fabry–Pérot interferometer in the form of a transparent plate (often made of fused silica) with parallel reflecting surfaces (solid etalon).
Mar 21, 2023 · What is a Fabry-Perot etalon? Fabry-Perot etalon is a type of optical interferometer that is used to selectively transmit or reflect light of specific wavelengths. It consists of two parallel reflective surfaces separated by a precise distance, typically in the range of micrometers.
- Further Considerations on The Finesse
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In fact, a measured finesse has a number of contributing factors: the mirror reflectivity finesse, simply denoted F above, the mirror surface quality finesse FQ, and the finesse due to the illumination conditions (beam alignment and diameter) of the mirrors Fi. The overall finesse of a system, Ft, is given by the relation4 Often, the reflectivity f...
P. W. Milonni and J. H. Eberly, Lasers(John Wiley & Sons, Inc., 1988) p. 302.P. Ehlers, Further Development of NICE-OHMS, Ph.D. thesis, Umeå University, Sweden, 2014.D. Romanini et al., in Cavity-Enhanced Spectroscopy and Sensing, edited by G. Gagliardi and H.P. Loock (Springer, 2014), Vol. 179, Chap. 1, pp. 1 - 60.M. Hercher, "The Spherical Mirror Fabry-Perot Interferometer," Applied Optics, vol. 7, no. 5, pp. 951 - 966, 1968.It can be seen from Equation (1) above, that the optical path length and subsequently the free spectral range, finesse, and mode width depend on the beam offset, h, from the optical axis of the int...The reflective coatings in all Thorlabs Fabry-Pérot interferometers have been designed so that the minimum Fis better than 1.5 times the minimum specified finesse across their entire operating wave...A Fabry–Pérot interferometer (also called Fabry–Pérot resonator) is a linear optical resonator (or cavity) which consists of two highly reflecting mirrors (with some small transmissivity) and is often used as a high-resolution optical spectrometer.
A Fabry-Perot Interferometer is defined as an instrument that utilizes multiple-beam interference with two parallel surfaces having semi-transparent, highly reflecting coatings. It is commonly known as a Fabry-Perot etalon when the separation of the surfaces is fixed.
Fabry-Perot Interferometer. This interferometer makes use of multiple reflections between two closely spaced partially silvered surfaces. Part of the light is transmitted each time the light reaches the second surface, resulting in multiple offset beams which can interfere with each other.
