Results 221 to 230 of about 9,788 (273)

Vector potential quantization and the photon intrinsic electromagnetic properties: Towards nondestructive photon detection

International Journal of Quantum Information, 2017
We employ here the enhancement of the vector potential amplitude quantization at a single photon state. The analysis of the general solution of the vector potential, obtained by resolving Maxwell’s equations, implies that the amplitude is proportional to the angular frequency.
Meis, Constantin, Dahoo, Pierre-Richard
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Electromagnetic Field and Photons

1984
The probabilistic treatment of the electromagnetic field in vacuum would have to be based on the results of Chapter 7 dealing with random fields. But the definition of a random field there proceeds, as should be the case in probabilistics, from the notion of a continuous concrete object regarded as the carrier of a field.
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Electromagnetically induced one-photon and two-photon transparency in rubidium atoms

Optics Communications, 2003
Abstract We investigate electromagnetically induced transparency (EIT) for one-photon and resonant two-photon transitions in rubidium atomic vapors. One-photon transparency is obtained in the 5S–5P–5D three level ladder system. At the same time, we study electromagnetically induced transparency in the two-photon transition (EITT) from the 5S to the ...
Xu JH, LA ROCCA, Giuseppe Carlo, Bassani F, Wang D, Gao JY   +4 more
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Electromagnetic waves and photons

1996
This chapter discusses electromagnetic waves and photons. It begins by reviewing some basic ideas on the properties of waves, introducing the wave properties of radiation. There are several reasons for starting with a discussion of electromagnetic radiation. Historically, it was in this area that the quantum theory first developed.
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Inverse Design Problems in Electromagnetics and Nano-Photonics

2005 Pacific Rim Conference on Lasers & Electro-Optics, 2006
In the Photonic Crystal field, we must now concentrate on the numerical solution of inverse design problems. There are a number of inverse algorithms, including genetic algorithms, the error-propagation method, and simulated annealing, that can contribute toward photonic crystal design.
E. Yablonovitch, C.Y. Kao, S. Osher
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Electromagnetics in retarded time and photon localization

American Journal of Physics, 1997
Maxwell’s equations are presented in retarded time coordinates, source-free solutions are found which are instantaneously localized. The modified Lorentz force law is discussed.
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Electromagnetic Interactions and Photon–Electron Cascades

2009
After a brief introduction and the presentation of a list of the fundamental electromagnetic processes we first define frequently used quantities, relations and concepts. We then review the processes that are relevant for the development of electromagnetic (photon–electron) cascades such as bremsstrahlung by electrons, pair production by photons ...
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Electromagnetically enhanced two-photon gain and absorption

OSA Annual Meeting, 1993
Recent research has shown that the interaction between an atom and an electromagnetic field can be modified favorably by illuminating the atom by an intense, auxiliary laser field.
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Photon-drag experiment and the electromagnetic momentum in matter

Physical Review B, 1986
The photon-drag experiment of Gibson et al. [Proc. R. Soc. London, Ser. A 370, 303 (1980)], operating in the millimeter region, is analyzed and compared with predictions following from the electromagnetic energy-momentum tensors of Minkowski, of Abraham, of Peierls, and of Einstein and Laub.
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Electromagnetic wave propagation in photonic crystals and metamaterials

2022
Οι μεγάλη πρόοδος της νανοτεχνολογίας κατά τον 20ο αιώνα οδήγησε σε πολυάριθμες νέες εφαρμογές που σχετίζονται με διάδοση και έλεγχο ηλεκτρομαγνητικών κυμάτων. Επιπλέον, οδήγησε στην επινόηση και δημιουργία σύνθετων τεχνητών δομών/υλικών με οπτικές ιδιότητες που μπορούν να σχεδιαστούν με κατάλληλο σχεδιασμό της γεωμετρίας της δομής.
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