Abstract

We report a fiber-optic evanescent-wave (EW) sensor capable of dramatically increasing the power collection level by capturing the EW power that is normally lost. The key element is a taper with a thin overlay that is completely separated from the sample by an arbitrary distance and thus operates remotely within the instrumentation system. A two-stage tuning of the close-to-cutoff modes occurring within this element is proposed to interpret the observed phenomenon.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Recapturing lost evanescent power by tuning end face total internal reflection capable tunneling modes at a roughened fiber end face

Jianjun Ma, Yasser Chiniforooshan, Jiahua Chen, Wojtek J. Bock, Wenhui Hao, and Zhi Yuan Wang
Opt. Lett. 36(18) 3581-3583 (2011)

Enhancement of evanescent fluorescence from fiber-optic sensors by thin-film sol-gel coatings

H. Pin Kao, Nancy Yang, and Joseph S. Schoeniger
J. Opt. Soc. Am. A 15(8) 2163-2171 (1998)

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 (3)

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 (9)

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