02034nas a2200301 a 450000500170000000800410001703500150005810000250007324500950009826000570019330000220025050200590027250001240033152008310045565000250128665000200131165000220133170000330135370000480138670000460143470000500148071000560153085600650158690700250165190200110167699800280168799900170171520260818090847.0230830s2012    th a   |||    000   eng d  a.b1241153x0 aCharusluk Viphavakit10aDevelopment of integrated optical characterization bench for sensing Microfluidic channel   aPathum Thani :bAsian Institute of Technology,c2012  a60 leaves :bill.  aThesis (M. Eng.) - Asian Institute of Technology, 2012  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Nanotechnology  aThis work introduces design, fabrication and characterization of an optical based integrated flow rate sensor where the light- fluid interaction is maximized by allowing the liquid and light to propagate along the same direction. This is achieved by placing a 10 {uF06D}m deep channel between two waveguides. The optical waveguides are tapered down to the channel width to feed the light in and out, where tapering is done to minimize the coupling and propagation loss. The output signal is detected by a fast receiver (higher than 1MHz) that records the dynamic change of the light intensity when fluid flows through the channel. This scheme allows for the direct measurement of the liquid flow rate with higher interaction length between fluid and light. The initial results showed a dynamic range of measurement up to 0.18. 0aMicrofluidic devices 0aOptical Devices 0aIntegrated optics1 aDutta, Joydeep,eChairperson1 aMohammed, Waleed S.,eExamination committee1 aHornyak, Gabor L.,eExamination committee0 aPoompat Saengudomlert,eExamination Committee2 aRoyal Thai Government FellowshipeScholarship Donor  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B05138  a.b1241153xbmnaitcm  a240419  b0c230830dmea  fmg0  c29355d29355