Modern Electron Optics and the Search for More Light: The Legacy of the Muslim Golden Age

El-Gomati, Mohamed

doi:10.1007/978-3-319-31903-2_6

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…The vast majority of optical instruments such as photodiodes, CCD sensors, or even the eye are sensitive to the intensity of the light wave. Thus, optical telecommunications were initially based on a binary modulation of the intensity of the transmitted wave [1][2][3]. This made it possible to neglect to a large extent the factors affecting the phase of the wave, which is much more difficult to control than the intensity profile.…”

Section: Introductionmentioning

confidence: 99%

Applications of sinusoidal phase modulation in temporal optics to highlight some properties of the Fourier transform

2019

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Fourier analysis plays a major role in the analysis and understanding of many phenomena in physics and contemporary engineering. However, students, who have often discovered this notion through numerical tools, do not necessarily understand all the richness that can be derived from joint analysis in the temporal and spectral domains, particularly in the field of optics. As part of the second year of the Master's degree in Physics Lasers and Materials at the University of Burgundy, we have set up a set of experiments to highlight these concepts and to show, on a non-trivial example of periodic phase modulation, the precautions to be taken in the interpretation of the various experimentally accessible spectra. This hands-on session, made possible through the use of the research infrastructure, is also an introduction to the use of standard optical telecommunications equipment.

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Section: Introductionmentioning

confidence: 99%

Applications of sinusoidal phase modulation in temporal optics to highlight some properties of the Fourier transform

2019

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“…The family comprises frequency modulation, in which the message signal causes a functional variation of the carrier frequency, and phase modulation, in which the instantaneous phase deviation is controlled by the modulating waveform, such that the principle frequency remains constant. Angle modulation forms the basis for the worldwide-used broadcasting of radio programming using frequency-modulation technology or coherent optical communications [1].…”

Section: Introductionmentioning

confidence: 99%

Impact of a temporal sinusoidal phase modulation on the optical spectrum

2018

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We discuss the effects of imparting a temporal sinusoidal phase modulation to a continuous wave on the frequency spectrum. While a practical analytical solution to this problem already exists, we present here a physical interpretation based on interference processes. This simple model will help the students better understand the origin of the oscillatory structure that can be observed in the resulting spectrum and that is characteristic of Bessel functions of the first kind. We illustrate our approach with an example from the field of optics.

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Modern Electron Optics and the Search for More Light: The Legacy of the Muslim Golden Age

Cited by 2 publications

References 18 publications

Applications of sinusoidal phase modulation in temporal optics to highlight some properties of the Fourier transform

Applications of sinusoidal phase modulation in temporal optics to highlight some properties of the Fourier transform

Impact of a temporal sinusoidal phase modulation on the optical spectrum

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