Special Issue "Resonant Sensors and Sensor Fusion"
A special issue of Sensors (ISSN 1424-8220).
Deadline for manuscript submissions: closed (15 April 2015).
Interests: biosensing; nanophotonics; optofluidics; nanoplasmonics; quantum/classical information processing; nanolithography
Special Issues and Collections in MDPI journals
Optical resonant sensors utilizing optical feedback in a resonator or resonant wave-coupling to achieve “longer” interaction length for enhanced sensitivity have been developed for many years. The feedback mechanism in such resonant geometries as microcavity in a photonic crystal lattice, microring, microsphere, microtoroid and microdisk have been employed for shaping resonant transmission or reflection spectrum with the objective to enhance its spectral resolution. A complementary approach uses surface plasmon-polariton resonance (SPR) phenomena for sensing applications. In SPR sensor, an evanescently coupled optical field resonantly excites a surface plasmon-polariton wave which is employed to monitor the metal-dielectric interface by monitoring the resonantly transmitted or reflected light which provide comparable sensor sensitivity. Recent advance in micro/nano fabrication technology allows for miniaturization and cost-effective manufacturing of such optical resonant sensor devices with retained sensing sensitivity. Moreover, chip-scale integration of microfluidics with optics will enable analyte preparation and delivery for optical interrogation by photonic integrated circuit that includes light source, light guiding, manipulation, optical resonant sensor and detection elements. Ideal biomedical sensors will not only maximize the optical localization (i.e., localize the electromagnetic energy in a small mode volume) but also enforce maximal overlap between this localized field and the volume of biomolecular interactions. Furthermore, because of its smaller footprint dimensions, a large array of sensors can be made on the single sensor chip allowing us to perform high throughput monitoring and detection to realize multiple sensing modalities, employ signal and information processing with sensor fusion, and, thereby, improve detection accuracy, sensitivity and specificity. Various potential applications such as label-free immunoassays, projection on biomarkers, chemical sensors, and precision temperature and pressure measurements will benefit from the developments of resonant microsensors arrays integrated with analyte or sample delivery subsystem on the same chip-scale platform to enable fusion of detected information exploiting advanced signal and information processing methods.
Prof. Dr. Yeshaiahu (Shaya) Fainman
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- optical resonator
- plasmon resonance
- resonant cavity
- surface plasmon resonance
- nanoplasmonic sensor
- whispering-gallery mode
- high Q-factor resonant microsensor
- photonic crystal resonator
- waveguide resonator
- microtoroidal structure
- microsensor chip
- protein chips