Laser photoelectron projection microscopy with subwavelength spatial resolution

The development of a laser photoelectron projection microscope with a magnification up to 105 and spatial resolution up to 30 nm as well as the first results of studies of needle tips made of LiF crystals with F2-aggregated centers with the use of this microscope are reported. The resolution achieved was sufficient to visualize individual defects on the crystals surface. The effects of thermal faceting of LiF:F2− needle tips due to their heating by intense laser radiation were observed for the first time.