Cross-wavelength all-optical switching using nonlinearity of liquefying gallium.
The gallium/silica interface optical nonlinearity associated with a light-induced structural phase transition from a-gallium to a more reflective, more metallic phase shows an exceptionally broadband spectral response. It allows 40% deep nanosecond/microsecond cross-wavelength intensity modulation between signals at 1.3 and 1.55aem.
Albanis
V
V
Dhanjal
S
S
Zheludev
N
N
Petropoulos
P
P
Richardson
D
D