The World at a Micro Level: Seeing What Mines Researchers See
Researchers across the Mines campus often see a part of the world that the average personÂ will never know. Fortunately, using advanced microscopy, researchers were willing to share aÂ peek at what they are working on, allowing us to see what they see while in the lab.
3-D transmission x-ray microscopy image ofÂ platinum nickel nanowire fuel cell catalystÂ when embedded in an electrode.
Scanning transmission electron microscopyÂ micrograph illustrating defects in a naturalÂ Brookite (Titanium Dioxide) crystal acquiredÂ in dark field mode. Crystallographic defectsÂ include line defects such as dislocations andÂ planar defects such as stacking faults andÂ grain boundaries.
Transmission electron microscopy imageÂ illustrating defects in a natural BrookiteÂ (Titanium Dioxide) crystal acquired in darkÂ field mode. At bottom right, a series ofÂ dislocation loops are present, giving theÂ appearance of a zipper. Defects in the top leftÂ of the image are single dislocation loops.
Thinned, needle-shaped sample for atom probe tomography, preparedÂ by milling in a dual-beam scanning electron microscope and focusedionÂ beam (FIB) instrument. Left to right: Scanning transmissionÂ electron microscopy images in bright-field and high-angle annular darkÂ field modes, with a corresponding energy dispersive spectroscopyÂ compositional map. The carbon sample (red) is clearly sandwichedÂ between layers of metallic gold coating (yellow) on a silicon substrateÂ (gray).
Image series of bubbles in glass that were createdÂ by a femtosecond laser. Two different imageÂ contrast mechanisms are used, second harmonicÂ generation (SHG) and third harmonic generationÂ (THG). These bring out different featuresâ€”especiallyÂ when compared to the traditional white light imageÂ on the far left column.