Surface resistance imaging with a scanning near-field microwave microscope

Transmission near-field scanning microscope for infrared chemical imaging

We report transmission infrared near-field scanning microscopy ~IR-NSOM! imaging of chemically amplified photoresist polymers patterned by ultraviolet exposure. Chemical specificity was attained using infrared wavelengths tuned to the 3 mm OH stretch absorption band of the polymer, a band sensitive to the chemical changes characteristic of the lithographic photochemical process of this material...

An apertureless near-field scanning optical microscope for imaging surface plasmons in the mid-wave infrared

ABSTRACT An apertureless near-field scanning optical microscope (a-NSOM) setup is described. Special consideration is given to important system components. Surface plasmons are defined, as is their relationship to aNSOM and their interaction with the scanning probe tip. We used this set-up to measure a metal-dielectric-metal (MDM) antenna integrated with a quantum cascade laser (QCL). The forme...

Cloaked near-field scanning optical microscope tip for noninvasive near-field imaging.

Near-field imaging is a well-established technique in biomedical measurements, since closer to the detail of interest it is possible to resolve subwavelength details otherwise unresolved by regular lenses. A near-field scanning optical microscope (NSOM) tip may indeed overcome the resolution limits of far-field optics, but its proximity inherently perturbs the measurement. Here, we apply the re...

Near-field Scanning Optical Microscope Platform

Scanning Near-field Raman Spectroscopic Microscope