Whispering gallery mode profiles in a coated microsphere

被引：15

作者：

Ristic, D. ^{[1
]}

Chiappini, A. ^{[2
]}

Mazzola, M. ^{[2
]}

Farnesi, D. ^{[3
]}

Nunzi-Conti, G. ^{[3
]}

Righini, G. C. ^{[4
]}

Feron, P. ^{[5
]}

Cibiel, G. ^{[6
]}

Ferrari, M. ^{[2
]}

Ivanda, M. ^{[1
]}

机构：

[1] Inst Rud Er Boskovic, Zagreb 10000, Croatia

[2] IFN CNR CSMFO Lab, I-38123 Trento, Italy

[3] IFAC CNR, MDF Lab, I-50019 Sesto Fiorentino, Italy

[4] Enrico Fermi Ctr, I-00184 Rome, Italy

[5] FOTON Syst Photon CNRS UMR 6082, ENSSAT, F-22305 Lannion, France

[6] CNES, F-31401 Toulouse 9, France

来源：

EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS | 2014年 / 223卷 / 10期

关键词：

LABEL-FREE; GUIDES;

D O I：

10.1140/epjst/e2014-02239-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The properties of whispering gallery modes (WGM) of a microsphere can be tailored by coating the resonator with a thin film. If the coating has a higher refractive index than the microsphere core, the resulting structure will have a configuration which has similarities both with a classical WGM resonator and with a planar waveguide. By choosing the film thickness and refractive index we can tailor the degree of confinement of the WGMs inside the sphere core, coating and surrounding medium, which will in turn influence the WGMs contact with its surroundings. We present a study of the effect of the coating on the WGM mode profiles in particular of a silicon coating on a silica sphere.

引用

页码：1959 / 1969

页数：11

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