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Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari

Two French physicists (Alfred Perot and Charles Fabry) developed the classical Fabry-Perot interferometer (FPI) or etalon at the beginning of the twentieth century. This novel form of interference device was based on multiple reflections of waves between two closely spaced and highly reflecting mirr...

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Main Author: Tunku Ahmad Tajuddin Bukhari, Tunku Puteri Nor Ajeerah
Format: Student Project
Language:English
Published: 2012
Subjects:
Electricity and magnetism
Dielectrics
Online Access:http://ir.uitm.edu.my/id/eprint/48697/1/48697.pdf
http://ir.uitm.edu.my/id/eprint/48697/
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spelling my.uitm.ir.486972021-07-22T07:58:07Z http://ir.uitm.edu.my/id/eprint/48697/ Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari Tunku Ahmad Tajuddin Bukhari, Tunku Puteri Nor Ajeerah Electricity and magnetism Dielectrics Two French physicists (Alfred Perot and Charles Fabry) developed the classical Fabry-Perot interferometer (FPI) or etalon at the beginning of the twentieth century. This novel form of interference device was based on multiple reflections of waves between two closely spaced and highly reflecting mirrors (the original thinly silvered plane glass mirrors were adjusted to be as flat and parallel to each other as possible). Alternative but conceptually equivalent elements are the "solid" etalon made from some low-loss materials (e.g., fused quartz or sapphire) or the Fabry-Perot (FP) cavity whose reflectors are partially transparent metal mirrors (e.g., perforated plates) or multilayer dielectric coatings (e.g., Bragg mirrors). The general concepts and theoretical analysis of these resonant optical cavities were published about the middle of the nineteenth century. Plane-parallel FPhave sharp resonances or transmission passbands at discrete frequencies. They thus behave as narrowband frequency filters. Their main characteristics (standing-wave resonance conditions, resonant frequencies, fringe contrast, free spectral range, half-power bandwidth, Q factor, reflectivity finesse) can be found in any general textbook dealing with optical resonators. Although approximate, this analytical treatment reveals itself very fruitful for the analysis of FP-based devices operating at microwave and millimeter-wave frequencies. In their original form, FP used only flat reflecting surfaces, and the spacing between the mirrors was usually smaller than, or at most on the same scale as, the transverse diameters of the mirrors. Moreover, the FP interferometers were usually illuminated with a converging or diverging beam having a spread of angular directions, which resulted in "Fabry-Perot rings" transmitted through the interferometer in given discrete angular directions. Thus resonators are used as are spatial filters. In particular,the high directivity of FP-based resonator antennas originates from this property. 2012 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/48697/1/48697.pdf ID48697 Tunku Ahmad Tajuddin Bukhari, Tunku Puteri Nor Ajeerah (2012) Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari. [Student Project] (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Electricity and magnetism
Dielectrics
spellingShingle Electricity and magnetism
Dielectrics
Tunku Ahmad Tajuddin Bukhari, Tunku Puteri Nor Ajeerah
Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari
description Two French physicists (Alfred Perot and Charles Fabry) developed the classical Fabry-Perot interferometer (FPI) or etalon at the beginning of the twentieth century. This novel form of interference device was based on multiple reflections of waves between two closely spaced and highly reflecting mirrors (the original thinly silvered plane glass mirrors were adjusted to be as flat and parallel to each other as possible). Alternative but conceptually equivalent elements are the "solid" etalon made from some low-loss materials (e.g., fused quartz or sapphire) or the Fabry-Perot (FP) cavity whose reflectors are partially transparent metal mirrors (e.g., perforated plates) or multilayer dielectric coatings (e.g., Bragg mirrors). The general concepts and theoretical analysis of these resonant optical cavities were published about the middle of the nineteenth century. Plane-parallel FPhave sharp resonances or transmission passbands at discrete frequencies. They thus behave as narrowband frequency filters. Their main characteristics (standing-wave resonance conditions, resonant frequencies, fringe contrast, free spectral range, half-power bandwidth, Q factor, reflectivity finesse) can be found in any general textbook dealing with optical resonators. Although approximate, this analytical treatment reveals itself very fruitful for the analysis of FP-based devices operating at microwave and millimeter-wave frequencies. In their original form, FP used only flat reflecting surfaces, and the spacing between the mirrors was usually smaller than, or at most on the same scale as, the transverse diameters of the mirrors. Moreover, the FP interferometers were usually illuminated with a converging or diverging beam having a spread of angular directions, which resulted in "Fabry-Perot rings" transmitted through the interferometer in given discrete angular directions. Thus resonators are used as are spatial filters. In particular,the high directivity of FP-based resonator antennas originates from this property.
format Student Project
author Tunku Ahmad Tajuddin Bukhari, Tunku Puteri Nor Ajeerah
author_facet Tunku Ahmad Tajuddin Bukhari, Tunku Puteri Nor Ajeerah
author_sort Tunku Ahmad Tajuddin Bukhari, Tunku Puteri Nor Ajeerah
title Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari
title_short Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari
title_full Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari
title_fullStr Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari
title_full_unstemmed Reflectance and transmittance in linear Fabry- Perot interferometer in case of dielectric medium and oblique incidence / Tunku Puteri Nor Ajeerah Tunku Ahmad Tajuddin Bukhari
title_sort reflectance and transmittance in linear fabry- perot interferometer in case of dielectric medium and oblique incidence / tunku puteri nor ajeerah tunku ahmad tajuddin bukhari
publishDate 2012
url http://ir.uitm.edu.my/id/eprint/48697/1/48697.pdf
http://ir.uitm.edu.my/id/eprint/48697/
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score 13.244368

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