Microfluidic tuning of distributed feedback quantum cascade lasers

L. Diehl, B. G. Lee, P. Behroozi, M. Lončar, M. A. Belkin, Federico Capasso, T. Aellen, D. Hofstetter, M. Beck, J. Faist

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)11660-11667
Number of pages8
JournalOptics Express
Issue number24
StatePublished - Nov 2006
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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