Volume 110, Number 5, June 2015
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||26 June 2015|
A new Fano resonance in measurement processes
1 Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa - Apartado Postal 55-534, 09340 México Distrito Federal, Mexico
2 Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-Azcapotzalco - Av. San Pablo 180, Col. Reynosa Tamaulipas, 02200 México Distrito Federal, Mexico
3 Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México - Apartado Postal 48-3, 62210 Cuernavaca Mor., Mexico
Received: 29 April 2015
Accepted: 5 June 2015
In a wave resonant scattering process the interference of the continuous scattering amplitude with a discrete resonant state, both of the same undulatory nature, gives rise to a Fano resonance profile. We report experimental evidence of a new kind of Fano resonance, in which the continuous amplitude is of a different nature than that of the resonant wave. The continuous amplitude, of a electromagnetic nature, comes from the measurement process and induces a new type of prompt, or rapid, response of the system which we describe theoretically including this response as a direct process.
PACS: 46.40.Cd – Mechanical wave propagation (including diffraction, scattering, and dispersion) / 62.30.+d – Mechanical and elastic waves; vibrations / 03.65.Nk – Scattering theory
© EPLA, 2015
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