dorsal/arxiv
View SchemaStudy On Planar Whispering Gallery Dielectric Resonators. I. General Properties
| Authors | G. Annino, M. Cassettari, M. Martinelli |
|---|---|
| Categories | |
| ArXiv ID | physics/0203009 |
| URL | https://arxiv.org/abs/physics/0203009 |
Abstract
Several basic properties of homogeneous planar Whispering Gallery dielectric resonators are investigated through a general approach. In particular the values for the minimum and maximum allowed radius, defined by irradiation and dielectric losses, respectively, are obtained in terms of the complex dielectric constant of the involved media. The same approach is employed in the analysis of the limit allowed frequencies of a fixed family of mode, leading to the definition of the "ideal" frequency band. The role of the transverse mode is then discussed, and the "effective" frequency band is introduced and determined both in simple disc and circular ring resonators. The extension of the effective band is limited at least by a factor 3, in terms of decades, in comparison to the extension of the ideal one; this limitation, due to the presence of transverse modes, can be overcome using suitably designed non-homogeneous resonators, as discussed in a following companion paper.
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"abstract": "Several basic properties of homogeneous planar Whispering Gallery dielectric\nresonators are investigated through a general approach. In particular the\nvalues for the minimum and maximum allowed radius, defined by irradiation and\ndielectric losses, respectively, are obtained in terms of the complex\ndielectric constant of the involved media. The same approach is employed in the\nanalysis of the limit allowed frequencies of a fixed family of mode, leading to\nthe definition of the \"ideal\" frequency band. The role of the transverse mode\nis then discussed, and the \"effective\" frequency band is introduced and\ndetermined both in simple disc and circular ring resonators. The extension of\nthe effective band is limited at least by a factor 3, in terms of decades, in\ncomparison to the extension of the ideal one; this limitation, due to the\npresence of transverse modes, can be overcome using suitably designed\nnon-homogeneous resonators, as discussed in a following companion paper.",
"arxiv_id": "physics/0203009",
"authors": [
"G. Annino",
"M. Cassettari",
"M. Martinelli"
],
"categories": [
"physics.ins-det"
],
"title": "Study On Planar Whispering Gallery Dielectric Resonators. I. General Properties",
"url": "https://arxiv.org/abs/physics/0203009"
},
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