In recent years Lab On a Chip (LOC) devices are gaining an increasing interest in the scientific community, since the idea of integrating in small and compact platforms the capabilities of a standard biological laboratory is extremely promising. The core of these devices is often constituted by a net of microchannels. A new field originates from the integration of optics and microfluidics, the so called optofluidics, which can be used for a wide range of applications, including sensors, tunable optical devices and optical manipulator of small particles. A huge limitation lies in the technical difficulties of integrating light into microfluidic platform. FLICE, which stands for Femtosecond Laser Irradiation followed by Chemical Etching, is a recently introduced fabrication technique, that permits to integrate in the same platform microfluidic channels and optical waveguides, with the desired 3D layout. In this work several optofluidic devices are presented which highly exploiting the advantages of the fabrication technique, present innovative features.
Recentemente i dispositivi lab – on-a- chip, costituiti da una rete di canali microfluidici, stanno guadagnando un crescente interesse nella comunità scientifica, per l’enorme vantaggio di integrare in un unico e portatile chip le capacità di un intero laboratorio di biologia Dall’integrazione della luce in questi dispositivi, nasce un nuovo campo, noto anche come optofluidica, che offre una vasta gamma di applicazioni. Tuttavia, la principale problematica che limita lo sviluppo di questo campo è legata alle difficoltà tecniche nel realizzare questi dispositivi, dovuta alla difficoltà di integrare con precisione circuiti ottici e fluidici nello stesso substrato. Nell’ambito di questa tesi, utilizzando una recente tecnica di fabbricazione basata sull’irraggiamento laser a femtosecondi di un materiale vetroso seguito da un bagno di acido idrofluoridrico, abbiamo fabbricato e ottimizzato degli innovativi dispositivi optofluidici.
Femtosecond laser micromachining of optofluidics glass chips for biophotonic applications
PAIE', PETRA
Abstract
In recent years Lab On a Chip (LOC) devices are gaining an increasing interest in the scientific community, since the idea of integrating in small and compact platforms the capabilities of a standard biological laboratory is extremely promising. The core of these devices is often constituted by a net of microchannels. A new field originates from the integration of optics and microfluidics, the so called optofluidics, which can be used for a wide range of applications, including sensors, tunable optical devices and optical manipulator of small particles. A huge limitation lies in the technical difficulties of integrating light into microfluidic platform. FLICE, which stands for Femtosecond Laser Irradiation followed by Chemical Etching, is a recently introduced fabrication technique, that permits to integrate in the same platform microfluidic channels and optical waveguides, with the desired 3D layout. In this work several optofluidic devices are presented which highly exploiting the advantages of the fabrication technique, present innovative features.File | Dimensione | Formato | |
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https://hdl.handle.net/10589/114518