Room temperature spontaneous emission enhancement from quantum dots in photonic crystal slab cavities in the telecommunications C-band

Richard Hostein (1) , Rémy Braive (1) , Matthieu Larqué (1) , Ko-Hsin Lee (1) , Anne Talneau (1) , Luc Le Gratiet (1) , Isabelle Robert-Philip (1) , Isabelle Sagnes (1) , Alexios Beveratos (1)

1 LPN - Laboratoire de photonique et de nanostructures

We report on the control of the spontaneous emission dynamics from InAsP self-assembled quantum dots emitting in the telecommunications C-band and weakly coupled to the mode of a double heterostructure cavity etched on a suspended InP membrane at room temperature. The quality factor of the cavity mode is 44x10^3 with an ultra-low modal volume of the order of 1.2 lambda/n)^3, inducing an enhancement of the spontaneous emission rate of up a factor of 2.8 at 300 K.

Domaines: Physique Quantique [quant-ph]; Optique [physics.optics]

Richard Hostein, Rémy Braive, Matthieu Larqué, Ko-Hsin Lee, Anne Talneau, et al.. Room temperature spontaneous emission enhancement from quantum dots in photonic crystal slab cavities in the telecommunications C-band. Applied Physics Letters, 2009, pp.123101. ⟨10.1063/1.3104855⟩. ⟨hal-00370808⟩