Abstract
A novel architecture of one-dimensional photonic crystal membrane (PCM)
reflectors embodying a heterostructure is proposed as a robust design aimed at a 3-D
efficient confinement of light in single-mode polarization-controlled 1.55- µm
vertical-cavity surface-emitting laser (VCSEL) microsources for heterogeneous
integration on complementary metal-oxide-semiconductor (CMOS). On the basis of a
theoretical approach, the paper focuses on the deep interweaving between the kinetics of
light transport in the mirrors and the physical nature of the exploited Fano resonances.
An example of VCSEL design for optical pumping employing heterostructure-confined
photonic crystal mirrors is presented. The predicted photons kinetics along with the
considerable improvement in cavity modal features owing to the enhanced mirror
architecture have been confirmed by performing rigorous three-dimensional
finite-difference time-domain (3-D FDTD) calculations. Finally, experimental
observations of photoluminescence (PL) emission performed on first-ever fabricated
devices for optical pumping show striking agreement with theoretical considerations and
<i>ab initio</i> modelling.
© 2011 IEEE
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