Polytypic InP nanolaser monolithically integrated on (001) silicon.

Wang, Zhechao; Tian, Bin; Paladugu, Mohanchand; Pantouvaki, Marianna; Le Thomas, Nicolas; Merckling, Clement; Guo, Weiming; Dekoster, Johan et al. · Nano Lett · 2013

basic_science · Level V

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Abstract

On-chip optical interconnects still miss a high-performance laser monolithically integrated on silicon. Here, we demonstrate a silicon-integrated InP nanolaser that operates at room temperature with a low threshold of 1.69 pJ and a large spontaneous emission factor of 0.04. An epitaxial scheme to grow relatively thick InP nanowires on (001) silicon is developed. The zincblende/wurtzite crystal phase polytypism and the formed type II heterostructures are found to promote lasing over a wide wavelength range.