Symposia; Photonics; Electrooptics; Quantum electronics; Laser cavities; Emitters; Light modulators; Transport properties; Quantum wells; Excitons; Semiconductor lasers; Semiconductor diodes; Gallium arsenides; Aluminum gallium arsenides; Optical waveguides; Optical switching; Lithography; Soft x rays; Optical properties; Wire; Microcavities; Solid state lasers; Blue green lasers; Nonlinear optics; X ray projection lithography; Optical computers;