Band‐selective extraction of resonant frequencies in high‐ Q  resonators | Zendy

Haala Jens | Zendy; Zhang Ying | Zendy; von Hagen Jürgen | Zendy; Wiesbeck Werner | Zendy

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Band‐selective extraction of resonant frequencies in high‐ Q resonators

Author(s) -

Haala Jens,

Zhang Ying,

von Hagen Jürgen,

Wiesbeck Werner

Publication year - 2001

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.1201

Subject(s) - excitation , computation , sinc function , resonator , limit (mathematics) , microwave , function (biology) , finite difference time domain method , sampling (signal processing) , physics , computational physics , mathematical analysis , algorithm , mathematics , optics , quantum mechanics , evolutionary biology , detector , biology

The efficient computation of intrinsic frequencies of resonators is presented by an FDTD computation using a new excitation function and a subsequent application of Prony's method. For an accurate extraction of the frequencies, the excitation function must be rather short in the time domain, as well as having a well‐defined frequency content. A sinc‐type excitation function allows very short simulation times, as well as convenient computation near the Courant limit. The sampling of Prony's method starts after the excitation has decayed, a point in time well defined with the new excitation. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 438–441, 2001.

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