Semiconductors. Direct bandgap semiconductors (GaAs, InGaAs, InGaAsP) The minimum of CB is directly above the maximum of VB Electro-hole pair can recombine.
Intense Laser Plasma Interactions on the Road to Fast Ignition Linn D. Van Woerkom The Ohio State University APS DPP Orlando, FL 14 November 2007 FSC.