An integrated continuous-wave terahertz biosensor
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Engineering design of a terahertz biosensor.
This develops a terahertz biosensor, with the object being an engineering device rather than research.
Engineering paper proposing a terahertz biosensor device design.
Résumé
An integrated continuous-wave (CW) terahertz biosensor is proposed based on an edge-coupled terahertz photomixer source with guided-wave optical excitation scheme. In this device, two laser beams are guided inside an optical dielectric waveguide structure and being gradually absorbed by an overlying ultra-fast photoabsorbing layer, wherein a terahertz signal is generated due to photomixing phenomenon. The generated THz signal is guided by a coplanar-stripline (CPS) and is coupled to an integrated CPS resonator, which acts as a sample carrier and transducer. After interaction by bio-sample, terahertz wave is guided by a CPS line to a wide-band antenna and is detected by a THz power detector. Our performance analysis for the proposed CW terahertz biosensor supports the feasibility of the whole idea very well. The proposed device is attractive for system-on-a-chip terahertz sensors and spectrometers.
Conservé avec la notice de tri, où il sert de preuve aux étiquettes ci-dessus.
La notice
- Revue
- Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
- Thématique
- Photonic and Optical Devices
- Domaine
- Engineering
- Établissements canadiens
- Defence Research and Development CanadaUniversity of Waterloo
- Organismes subventionnaires
- —
- Mots-clés
- Terahertz radiationPhotomixingMaterials scienceOptoelectronicsTerahertz gapOpticsFar-infrared laserResonatorTerahertz spectroscopy and technologyStriplineContinuous waveDetectorBiosensorSIGNAL (programming language)LaserPhysicsComputer scienceTerahertz metamaterials
- Résumé présent dans OpenAlex
- oui