Abstract

Low threshold organic microcavity lasers may find a broad range of applications from usage in integrated telecommunication circuits to lab-on-a-chip devices [1]. For sensing applications, pedestal cavities are advantageous due to a higher evanescent wave interaction with the surrounding medium leading to a higher sensitivity. We present a simple technology of pedestal cavity manufacturing and discuss the significant emission enhancement and threshold decrease, starting from the reference Fabry-Perot and extending to more elaborate cavity contours which sustain whispering gallery modes (disk, square, stadium).

© 2011 Optical Society of America