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Doctoral thesis . 2012
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Optical Fibers for Sensing Applications

Authors: Sozzi, Michele;

Optical Fibers for Sensing Applications

Abstract

L'utilizzo di dispositivi ottici per applicazioni sensoristiche può portare al vantaggio di avere un'alta sensibilità, alla possibilità della riduzione dei costi e della miniaturizzazione del dispositivo. A questo si deve aggiungere la possibilità di effettuare rilevazioni veloci e in modalità real-time. Tra questi dispositivi quelli fabbricati in fibra ottica possono portare ad avere una rilevazione in situ, da remoto, e in modo distribuito. Recentemente i sensori in fibra ottica sono stati utilizzati per applicazioni nel campo biochimico. La rivelazione di elementi patogeni in diversi campi di applicazione, da quello medico, alimentare, militare, e per il monitoraggio ambientale, ha fatto crescere il bisogno di sviluppare sensori affidabili in grado di poter effettuare rilevazioni in tempi rapidi, e con alta sensibilità. Per questo motivo in questo lavoro è stata studiata la possibilità di realizzare sensori in fibra ottica per molecole biologiche, in modo particolare per DNA, utilizzando diversi tipi di piattaforme. The use of optical devices for sensing applications can have the advantage of having a high sensitivity, and the possibility of reducing the costs and miniaturizing the device. They can also perform a fast and real-time detection. Among optical based sensors the ones fabricated with optical fibers can add the advantage of performing a remote, distributed, and in situ detection. Recently optical fiber based sensors have been used for biochemical applications. The detection of pathogen elements in different fields of applications, medical diagnostic, food industry, military, and environmental monitoring, created the need of developing sensors capable of a sensitive, fast, and reliable detection. For this reason in this work the possibility of realization of optical fiber sensors for biological molecules detection, in particular for DNA, has been studied, using different kinds of platforms.

Related Organizations
Keywords

DNA detection, Long period gratings, Photonics crystal fibers, Fiber Bragg gratings, ING-INF/02, Biosensor, 004, fiber optics sensor

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green