Optical Engineering publishes papers reporting on research and development in optical science and engineering and the practical applications of known optical science, engineering, and technology. Papers should describe the original work of the authors that has not been previously published in a refereed journal. Papers should be substantial and significant in content. Contributed papers cover a broad range of subject classifications encompassing the general fields of optical design and fabrication, lasers, astronomy, remote sensing, industrial inspection and processing, optical physics and chemistry, x-ray optics, integrated optoelectronics, microlithography, fiber optics, imaging and image processing, holography, signal processing, high-speed photography, medical optics, and electro-optical systems. In addition to contributed research papers, Optical Engineering often includes special sections of papers in key areas of technology. Special sections are assembled by guest editors.