Analytical expressions for real and complex Fano parameters in a simple classical harmonic oscillator system
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Abstract We analytically study the Fano resonance in a simple coupled oscillator system. We demonstrate directly from the equation of motion that the resonance profile observed in this system is generally described by the Fano formula with a complex Fano parameter. The analytical expressions are derived for the resonance frequency, resonance width, and Fano parameter, and the conditions under which the Fano parameter becomes a real number are examined. These expressions for the simple system are also expected to be helpful for considering various other physical systems because the Fano resonance is a general wave phenomenon.
2021 ◽
Vol 1918
(2)
◽
pp. 022025
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2006 ◽
Vol 20
(11n13)
◽
pp. 1808-1818
2006 ◽
Vol 175
(3)
◽
pp. 226-231
◽
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