Abstract

The effect of a dielectric substrate on whispering-gallery-mode (WGM)-based devices is experimentally investigated and theoretically quantified for spherical dielectric microresonators with 5μm diameter. The interaction with a dielectric substrate yields a homogeneous broadening with a threshold-like behavior versus the azimuthal quantum number, which is accompanied by an energy renormalization of about 20% of the broadening. The WGM orbital planes of narrowest spectral linewidth (close to the Mie value) in the presence of a substrate are identified, and the consequences for the scattering spectrum analysis of microsphere devices relying on high-Q factors are discussed.

© 2006 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Percolation of light through whispering gallery modes in 3D lattices of coupled microspheres

Vasily N. Astratov and Shashanka P. Ashili
Opt. Express 15(25) 17351-17361 (2007)

Spectroscopy of coherently coupled whispering-gallery modes in size-matched bispheres assembled on a substrate

Seungmoo Yang and Vasily N. Astratov
Opt. Lett. 34(13) 2057-2059 (2009)

Optimization of whispering gallery resonator design for biosensing applications

T. Reynolds, M. R. Henderson, A. François, N. Riesen, J. M. M. Hall, S. V. Afshar, S. J. Nicholls, and T. M. Monro
Opt. Express 23(13) 17067-17076 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription