Abstract

The design, fabrication, and characterization of a label-free Mach–Zehnder interferometer (MZI) optical biosensor that incorporates a highly dispersive one-dimensional (1D) photonic crystal in one arm are presented. The sensitivity of this slow light MZI-based sensor scales with the length of the slow light photonic crystal region. The numerically simulated sensitivity of a MZI sensor with a 16 μm long slow light region is 115,000 rad/RIU-cm, which is sevenfold higher than traditional MZI biosensors with millimeter-length sensing regions. An experimental bulk refractive index detection sensitivity of 84,000 rad/RIU-cm is realized and nucleic acid detection is also demonstrated.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High-sensitivity optical biosensor based on cascaded Mach–Zehnder interferometer and ring resonator using Vernier effect

Xianxin Jiang, Yangqing Chen, Fang Yu, Longhua Tang, Mingyu Li, and Jian-Jun He
Opt. Lett. 39(22) 6363-6366 (2014)

Label-free detection of bovine serum albumin based on an in-fiber Mach-Zehnder interferometric biosensor

Zhengyong Li, Changrui Liao, Danni Chen, Jun Song, Wei Jin, Gang-Ding Peng, Feng Zhu, Ying Wang, Jun He, and Yiping Wang
Opt. Express 25(15) 17105-17113 (2017)

Integrated optical frequency-resolved Mach-Zehnder interferometers for label-free affinity sensing

Maria Kitsara, Konstantinos Misiakos, Ioannis Raptis, and Eleni Makarona
Opt. Express 18(8) 8193-8206 (2010)

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 (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