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Soft UV nanoimprint lithography has be used to fabricate third order Bragg gratings for visible light and microfluidic dye laser operation. Soft stamps has been made by casting a poly-dimethylsiloxane on a silicon mould and a bi-layer imprinting process has used to obtain resist patterns of high density and high aspect ration line-and-space features. After a lift-off of thin nickel film, reactive...
Among many others, absorbance measurement is one of the most useful techniques to determine sample concentration on a microfluidic chip. The main drawback of this technique comes from the limited optical path length that can be achieved on a chip. We propose here an original design of a microfluidic dye laser to perform intracavity absorption measurements. The effective optical path length and so...
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