Generation of correlated photons in hydrogenated amorphous-silicon waveguides.
We report the first (to our knowledge) observation of correlated photon emission in hydrogenated amorphous-silicon waveguides. We compare this to photon generation in crystalline silicon waveguides with the same geometry. In particular, we show that amorphous silicon has a higher nonlinearity and competes with crystalline silicon in spite of higher loss.
Laboratoire d’Information Quantique, CP 225, Université Libre de Bruxelles (U.L.B.),Boulevard du Triomphe, B-1050 Bruxelles, Belgium. sclemmen@ulb.ac.be
S
S
Clemmen
A
A
Perret
S K
SK
Selvaraja
W
W
Bogaerts
D
D
van Thourhout
R
R
Baets
Ph
P
Emplit
S
S
Massar