The research focus of the firm's principals is decsribed as involving several topics related to nanoscale science and technology: viz. growth and design of heterostructures for multi-junction solar cells, quantum electronic devices, semiconductor devices and materials, molecular-beam epitaxy, pulsed laser deposition epitaxy, and semiconductor processing. Earlier topics had included co-integration of CMOS with III-V materials for single-chip, digital-system applications such as high-speed A/D conversion, communications, radar, and optoelectronics. Areas of specialty indicated by principals include: materials growth, epitaxy, heterostructures, semiconductor processing, photovoltaics, Hall effect and magnetotransport, charge transport in mesoscopic systems, superconductors, quantum fluids and solids, ultra-high vacuum systems, cryogenic systems