Biosensing with low-index waveguides: An experimental study of a polymer-based young interferometer sensor

Sanna Uusitalo, Markku Känsäkoski, Ari Kärkkäinen, Milja Hannu-Kuure, Sanna Aikio, Harri Kopola

Research output: Contribution to journalArticleScientificpeer-review


During the last decade, polymer-based integrated optics has shown promising development for mass production. An optical waveguide sensor with a low refractive index difference between the core and the surrounding medium could enable the manufacture of low-cost biosensors from materials with modifiable refractive indices. This type of Young interferometer sensor was fabricated from siloxane. The empirical sensitivity of the sensor was studied and found to be 5x10-6 refractive index units (RIU).
Original languageEnglish
Pages (from-to)65-69
Number of pages5
JournalMicro and Nanosystems
Issue number2
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed


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