Stanford researchers have patented a silicon germanium (SiGe) electroabsorption modulator that can operate well in excess of 10 Gbps and is entirely compatible with Silicon (Si) complementary metal-oxide semiconductor (CMOS) integrated circuit fabrication.
These light trapping solar cell structures increase optical absorption and carrier collection, improving efficiency by 24%, while significantly reducing the solar cell active layer thickness and thus lowering cost.
Engineers in Prof. James Harris' laboratory have developed a compact optics and microfluidics device to continuously monitor the hemostatic state of patients undergoing heart surgery, dialysis or other procedures.