Song, WuzhouVasdekis, Andreas E.Psaltis, Demetri2011-12-162011-12-162011-12-16201010.1063/1.3521357https://infoscience.epfl.ch/handle/20.500.14299/74772WOS:000287170800004In this work we demonstrate an integrated air-gap etalon that enables single wavelength operation and tuning ability for optofluidic dye laser. The integrated elastomeric air-gap etalon is controlled by air pressure. The chip was fabricated with polydimethylsiloxane (PDMS) via replica molding. It comprises a liquid waveguide and micro-scale air-gap mirrors providing the feedback. The lasing wavelength is chosen by the interference between two parallel PDMS-air interfaces inside the internal tunable air-gap etalon, of which pneumatic tuning can be realized by inflating the air-gap etalon with compressed air. This dye laser exhibits a pumping threshold of 1.6 mu J/pulse, a lasing linewidth of 3 rim and a tuning range of 14 nmOptofluidicdye lasertunable laseretalonelastomerTechnologytext::conference output::conference proceedings::conference paper