Faculté des sciences

Microfluidic tuning of distributed feedback quantum cascade lasers

Diehl, Laurent ; Lee, Benjamin G. ; Behroozi, Peter ; Loncar, Marko ; Belkin, Mikhail ; Capasso, Federico ; Aellen, Thierry ; Hofstetter, Daniel ; Beck, Mattias ; Faist, Jérôme

In: Optics Express, 2006, vol. 14, no. 24, p. 11660-11667

In this Letter, we report the tuning of the emission wavelength of a single mode distributed feedback quantum cascade laser by modifying the mode effective refractive index using fluids. A fabrication procedure to encapsulate the devices in polymers for microfluidic delivery is also presented. The integration of microfluidics with semiconductor laser (optofluidics) is promising for new compact... Plus

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    Summary
    In this Letter, we report the tuning of the emission wavelength of a single mode distributed feedback quantum cascade laser by modifying the mode effective refractive index using fluids. A fabrication procedure to encapsulate the devices in polymers for microfluidic delivery is also presented. The integration of microfluidics with semiconductor laser (optofluidics) is promising for new compact and portable lab-on-a-chip applications.