Abstract

We explore, to the best of our knowledge, the potential of diffractionless subwavelength grating waveguides for sensing applications. We show that by subwavelength patterning of silicon-wire waveguides the field delocalization can be engineered to increase the sensitivity. Fully vectorial 3D-FDTD simulations confirm the sensitivity enhancement, achieving sensitivities of 0.83RIU/RIU and 1.5·103RIU/nm for bulk and surface sensing, respectively, which compare favorably to state-of-the-art sensing waveguides.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Design and fabrication of SOI micro-ring resonators based on sub-wavelength grating waveguides

Valentina Donzella, Ahmed Sherwali, Jonas Flueckiger, Samantha M. Grist, Sahba Talebi Fard, and Lukas Chrostowski
Opt. Express 23(4) 4791-4803 (2015)

Controlling leakage losses in subwavelength grating silicon metamaterial waveguides

J. Darío Sarmiento-Merenguel, Alejandro Ortega-Moñux, Jean-Marc Fédéli, J. Gonzalo Wangüemert-Pérez, Carlos Alonso-Ramos, Elena Durán-Valdeiglesias, Pavel Cheben, Íñigo Molina-Fernández, and Robert Halir
Opt. Lett. 41(15) 3443-3446 (2016)

Sub-wavelength grating for enhanced ring resonator biosensor

Jonas Flueckiger, Shon Schmidt, Valentina Donzella, Ahmed Sherwali, Daniel M. Ratner, Lukas Chrostowski, and Karen C. Cheung
Opt. Express 24(14) 15672-15686 (2016)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (3)

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