Rib Waveguide Plasmonic Sensor for Lab-on-Chip Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


A prompt medical diagnosis is of major importance, starting the appropriate treatment earlier results in better outcomes and faster recovery times. Plasmonic biosensors based on photonic integrated circuits (PIC) are potential candidates in the development of lab-on-chip (LOC) technology, allowing digitalization of results and virtualization of laboratorial procedures in the detection of important biomarkers. These sensors have the advantages of high sensitivity and faster analysis when compared with traditional laboratorial methodologies. We study the possibility of exciting a surface plasmon, using low-cost fabrication methods and techniques based on amorphous silicon compounds, rib waveguide geometry and dimensions compatible with plasma-enhanced chemical vapor deposition (PECVD) and ultraviolet (UV) lithography. Results of Finite-Difference Time-Domain (FDTD) simulation of the plasmon excitation and sensor response are presented and discussed.

Original languageEnglish
Title of host publicationTechnological Innovation for Digitalization and Virtualization
Subtitle of host publication13th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2022, Caparica, Portugal, June 29 – July 1, 2022, Proceedings
EditorsLuís M. Camarinha-Matos
Place of PublicationCham
Number of pages10
ISBN (Electronic)978-3-031-07520-9
ISBN (Print)978-3-031-07519-3
Publication statusPublished - 2022
Event13th Advanced Doctoral Conference on Computing, Electrical, and Industrial Systems, DoCEIS 2022 - Caparica, Portugal
Duration: 29 Jun 20221 Jul 2022

Publication series

NameIFIP Advances in Information and Communication Technology
ISSN (Print)1868-4238
ISSN (Electronic)1868-422X


Conference13th Advanced Doctoral Conference on Computing, Electrical, and Industrial Systems, DoCEIS 2022


  • Amorphous silicon
  • Lab-on-Chip
  • Photonic integrated circuit
  • Plasmonics


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