On-resonance material fast light
| Autor: | Bernard Ségard, Bruno Macke |
|---|---|
| Přispěvatelé: | Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Carrier signal [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] Analytical expressions business.industry Fast Fourier transform FOS: Physical sciences Pulse duration Resonance 01 natural sciences Linear medium Pulse (physics) 010309 optics Optics Transmission (telecommunications) 0103 physical sciences 010306 general physics business Optics (physics.optics) Physics - Optics |
| Zdroj: | Physical Review A Physical Review A, American Physical Society, 2018, 97 (6), ⟨10.1103/PhysRevA.97.063830⟩ Physical Review A : Atomic, molecular, and optical physics [1990-2015] Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2018, 97 (6), ⟨10.1103/PhysRevA.97.063830⟩ |
| ISSN: | 1050-2947 1094-1622 |
| DOI: | 10.1103/PhysRevA.97.063830⟩ |
| Popis: | International audience; We theoretically revisit the problem of the propagation of coherent light pulses through a linear medium when the carrier frequency of the pulses coincides with the minimum of a narrow dip in the medium transmission. Considering realistic contrasts between the maximum and minimum transmission of the medium and incident pulses of strictly finite duration, we combine temporal and spectral approaches to obtain analytical expressions of the transmitted pulse that reproduce the main features of the exact numerical solutions derived by fast Fourier transform. A special attention is paid to the advance of the pulse maximum over that of a pulse covering the same distance in vacuum and the ratio of this advance to the pulse duration (fractional advance) is optimized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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