Abstract

We propose a highly sensitive chemical sensor by functionally coating a zeolite film on the external surface of an optical microsphere. Using the perturbation theory, a model is developed to calculate sensor sensitivity and analyze the impact of the zeolite film thickness. The quality factor and detection limit are also investigated by using an approximate model. Simulations show that a zeolite coating can effectively increase sensitivity. The results provide physical insights for the design and optimization of various parameters for desired sensor performance.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Thermostable refractive index sensors based on whispering gallery modes in a microsphere coated with poly(methyl methacrylate)

Nai Lin, Lan Jiang, Sumei Wang, Hai Xiao, Yongfeng Lu, and Hailung Tsai
Appl. Opt. 50(7) 992-998 (2011)

Simulation and optimization of polymer-coated microsphere resonators in chemical vapor sensing

Nai Lin, Lan Jiang, Sumei Wang, Qianghua Chen, Hai Xiao, Yongfeng Lu, and Hailung Tsai
Appl. Opt. 50(28) 5465-5472 (2011)

Study of the influence of the agarose hydrogel layer thickness on sensitivity of the coated silica microsphere resonator to humidity

Arun Kumar Mallik, Gerald Farrell, Qiang Wu, and Yuliya Semenova
Appl. Opt. 56(14) 4065-4069 (2017)

More Recommended Articles

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 (8)

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 (22)

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