A photovoltaic system is described herein. The photovoltaic system includes an array of micro-concentrators. Each micro-concentrator includes an exterior lens, an interior lens, and a transparent layer that is between the exterior lens and the interior lens. The array of micro-concentrators is optically aligned with an array of photovoltaic cells.
STATEMENT OF GOVERNMENTAL INTEREST
 This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.