Thermal-nanoimprint lithography for perylenediimide-based distributed feedback laser fabrication

• Emission spectra of DFBs under excitation with different spot diameters are studied.
• High quality PDI-based DFB devices have been obtained by direct T-NIL.
• Direct T-NIL shows clear advantages to obtain low cost DFB devices.

In the present work thermal-nanoimprint lithography of various commercial thermoplastic resists as matrixes for perylenediimides (PDIs) has been studied. This fabrication method reduces the number of fabrication steps, and therefore, the cost of the obtained distributed feedback (DFB) lasers. The optical properties of these devices are analyzed, aiming to optimize their performance.

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