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Active silicon-based two-dimensional slab photonic crystal structures based on erbium-doped hydrogenated amorphous silicon alloyed with carbon

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5 Author(s)
Choi, Yong-Seok ; Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea ; Sung, Joo Yeon ; Kim, Se-Heon ; Shin, Jung H.
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Two-dimensional (2D) slab photonic crystals based on Er-doped hydrogenated amorphous silicon alloyed with carbon (a-Si:H:C) are proposed and realized. Freestanding and oxide-cladding slab structures are fabricated and compared. 2D slab active photonic crystal structures show enhanced extraction of the trivalent erbium ion (Er3+) luminescence independent of the pump intensity. Temperature-insensitive light extraction efficiency with negligible surface-related nonradiative recombination was experimentally observed. The maximum enhancement became eightfold in freestanding slab structures. © 2003 American Institute of Physics.

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Applied Physics Letters  (Volume:83 ,  Issue: 16 )