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Makine Mühendisliği Bölümü Yayın Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/263

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Browsing Makine Mühendisliği Bölümü Yayın Koleksiyonu by Author "20809"

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    Fluorescent on-chip imager by using a tunable absorption filter
    (Ieee, 2017) Arpali, Caglar; Yıldırım, Ender; Yildirim, Ender; Arpali, Serap Altay; 20809; 31835; 51304; Makine Mühendisliği
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    Article
    Citation - WoS: 6
    Citation - Scopus: 10
    Implementation and characterization of an absorption filter for on-chip fluorescent imaging
    (Elsevier Science Sa, 2017) Yildirim, Ender; Yıldırım, Ender; Arpali, Caglar; Arpali, Serap Altay; 31835; 20809; 51304; Makine Mühendisliği
    Here we present fabrication and characterization of an absorption filter with superior roll-on properties and precisely tunable cut-off wavelengths for fluorescent imaging applications in lab-on-a-chip systems. The filters were fabricated by spinning dye doped photopolymer (Orasol Yellow in Norland Optical Adhesive 60) on glass substrates. The fabrication technique allowed us to precisely tune the cut-off wavelength of the filters. We showed that filters with different cut-off in the range of 386 nm-504 nm could be obtained simply by controlling the settling time before spinning. The filters exhibited a steep roll-on from stopband to passband at the cut-off. Transmission in the stopband was observed to be maximum 3% while it was almost constant at 100% in the passband within the range of 220 nm-620 nm. On-chip use of the filters was also demonstrated for imaging particular fluorescent beads. (C) 2016 Elsevier B.V. All rights reserved.