Today's pick up in organic semiconductor patents.
7,020,372 (Mar. 28 2006)
Optical devices with engineered nonlinear nanocomposite materials.
HowardWingHoon Lee, AlanHap Chin and WilliamMatthew Pfenninger
The invention relates to an optical device. The optical device comprises a
waveguide core and a nanocomposite material optically coupled to the
waveguide core. The nanocomposite material includes a plurality of
quantum dots. The nanocomposite material has a nonlinear index of
refraction .gamma. that is at least 10.sup.-9 cm.sup.2/W when irradiated
with an activation light having a wavelength .lamda. between
approximately 3.times.10.sup.-5 cm and 2.times.10.sup.-4 cm.