Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Mode analysis for metal-coated nanocavity by three-dimensional S-matrix method

Not Accessible

Your library or personal account may give you access

Abstract

Three-dimensional scattering matrix method is proposed to investigate mode characteristics for metal-coated nanocavities, with the vertical waveguide structure of an active region confined by upper and lower cladding layers. For a nanocavity with radius of 800 nm, Q factors of well-confined modes with wavelength around 1550 nm first decrease with the increase of the metallic layer thickness due to the metallic absorption and the increase of radiation loss as the metallic layer thickness is less than 10 nm, and then rise with the increase of the metallic layer. However, for a weak confined nanocavity with a radius of 500 nm, the mode Q factor increases with the metallic layer thickness first, reaches a maximum value at an optimal metallic thickness, then decrease with the further increase of the metallic layer. For nanocavities confined by a thick metallic layer, the Q factors approach constants limited by the metallic absorption. However, mode field patterns, including the vertical field distributions, are affected by the metallic layer, which not only influences the metallic layer absorption but also the optical confinement factor in the active region.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Investigation of mode characteristics for microdisk resonators by S-matrix and three-dimensional finite-difference time-domain technique

Xian-Shu Luo, Yong-Zhen Huang, Wei-Hua Guo, Qin Chen, Miao-Qing Wang, and Li-Juan Yu
J. Opt. Soc. Am. B 23(6) 1068-1073 (2006)

Mode characteristics of subwavelength aluminum/silica-coated InAlGaAs/InP circular nanolasers

Chu-Cai Guo, Jin-Long Xiao, Yue-De Yang, and Yong-Zhen Huang
J. Opt. Soc. Am. B 31(4) 865-872 (2014)

Plasmonic gap-mode nanocavities with metallic mirrors in high-index cladding

Pi-Ju Cheng, Chen-Ya Weng, Shu-Wei Chang, Tzy-Rong Lin, and Chung-Hao Tien
Opt. Express 21(11) 13479-13491 (2013)

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Figures (10)

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

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

Equations (41)

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

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved