title: A storage Dewar near-field scanning optical microscope
abstract: A near-field scanning optical microscope for operation within a storage Dewar is described. It was designed for studies of opaque samples and operates in the collection mode. Illumination can be either through the tip or from the side via a separate fiber. Scans can be begun within 2 h after start of cooldown. Its rigid design allows high resolution and long scans with no additional vibration isolation. To illustrate its performance, measurements of photoluminescence in GaAs/AlGaAs heterostructures are presented. The signal and noise levels for the two illumination modes are examined.
authors.affiliation: Department of Condensed Matter, The Weizmann Institute of Science, Rehovot, Israel.
authors.initials: G
authors.lastname: Eytan
authors.initials: Y
authors.lastname: Yayon
authors.initials: I
authors.lastname: Bar-Joseph
authors.initials: ML
authors.lastname: Rappaport