| Download | - View final version: Hybrid semiconductor plasmonic lasers for biochemical sensing: theory and design (PDF, 6.0 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1109/JPHOT.2025.3532399 |
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| Author | Search for: Saeidi, Shayan1, 2ORCID identifier: https://orcid.org/0000-0003-1194-0826; Search for: Schmid, Jens H.3ORCID identifier: https://orcid.org/0000-0003-3508-7428; Search for: Cheben, Pavel3ORCID identifier: https://orcid.org/0000-0003-4232-9130; Search for: Berini, Pierre1ORCID identifier: https://orcid.org/0000-0002-6795-7275 |
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| Affiliation | - University of Ottawa
- KVector Dynamics
- National Research Council Canada. Quantum and Nanotechnologies
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| Funder | Search for: National Research Council Canada; Search for: Natural Sciences and Engineering Research Council of Canada |
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| Format | Text, Article |
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| Abstract | An electrically driven InP-based Fabry-Perot biochemical sensing laser is proposed and analyzed. The design incorporates a sensing area on top of the laser to alter its characteristics and operates in a hybrid plasmonic-semiconductor lasing mode. Our device is designed for an etch-free III-V (InP) based stack, where lateral confinement of the hybrid mode is ensured by a thin gold (Au) strip on a thin indium tin oxide (ITO) strip. We optimize the waveguide geometry to produce maximum sensitivity while having compensable loss. Our investigation centers on three laser characteristics that are affected by the sensing fluid and that could serve as measurands: lasing wavelength, threshold current, and power-current slope efficiency. We determine the sensitivity of each measurand, assess the potential noise sources, and the limit of detection (LoD) associated with them. Our calculations indicate that the proposed biosensor can achieve LoDs as low as 10−5 RIU when employing the threshold current as the measurand. |
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| Publication date | 2025-01-21 |
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| Publisher | Institute of Electrical and Electronics Engineers |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 543252cb-f543-40bd-8f2a-b842a4db66d6 |
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| Record created | 2026-01-23 |
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| Record modified | 2026-02-25 |
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