Determination of profile parameters of a Fano resonance without an ultrahigh-energy resolution

نویسندگان

  • T. K. Fang
  • T. N. Chang
چکیده

A deconvolution procedure is proposed to determine the resonant width G , the asymmetry parameter q , and the background cross section sb of a Fano-type resonance in the absence of an ultrahigh-energy resolution. This procedure enables a direct extrapolation to infinite energy resolution using a set of explicit analytical relations in terms of the ratio between the width G and the experimental energy resolution V in the limit of G/V!1. @S1050-2947~98!04906-3#

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Catastrophe theory and resonance line shapes in atom-surface scattering

The measured high-resolution energy profile of a selective adsorption resonance in the scattering of He atoms from NaCl~001! is found to exhibit a mixed-extrema structure reminiscent of a Fano-type function. An analysis of the topological properties of the resonance line shape as a function of the surface temperature reveals a behavior which is isomorphic to the simplest elementary catastrophe,...

متن کامل

Low-loss ultra-high-Q dark mode plasmonic Fano metamaterials.

We experimentally demonstrate a planar terahertz Fano metamaterial with an ultrahigh quality (Q) factor of 227. This is achieved by the excitation of the nonradiative dark modes by introducing a tiny asymmetry in the metamaterial structure. The extremely sharp quadrupole and Fano resonances are excited at normal incidence for orthogonal polarizations of the electric field. In order to capture t...

متن کامل

Universal formalism of Fano resonance

Articles you may be interested in Resonant electromagnetic scattering in anisotropic layered media A systematic study of water-filled submerged elastic spherical shells and the resolution of elastic-and water-included resonances The phenomenon of Fano resonance is ubiquitous in a large variety of wave scattering systems, where the resonance profile is typically asymmetric. Whether the parameter...

متن کامل

Fano resonances and decoherence in transport through quantum dots

A tunable microwave scattering device is presented which allows the controlled variation of Fano line shape parameters in transmission through quantum billiards. We observe a non-monotonic evolution of resonance parameters that is explained in terms of interacting resonances. The dissipation of radiation in the cavity walls leads to decoherence and thus to a modification of the Fano profile. We...

متن کامل

An investigation into the effect of magnetic resonance imaging (MRI) echo time spacing and number of echoes on the sensitivity and dose resolution of PAGATUG polymer-gel dosimeter

Background: There are various methods to read out responses of a polymer-gel dosimeter, among which the Magnetic Resonance Imaging (MRI) technique is the most common one. Optimizing imaging protocols can have significant effect on the sensitivity and the dose resolution of polymer gel dosimeters. This study has investigated the effects of the number of echoes (NOE) and the echo time spacing (ES...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998