Air Gap Measurement between Substrates Using Confocal Technique

Measurement of Air Breakdown Voltage and Electric Field Using Standad Sphere Gap Method

Fabrication of Plasmonic Substrates Using Facile Technique of Spin-Coating for Salmonella Bacteria Detection

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Spatial resolution of confocal XRF technique using capillary optics

XRF (X-ray fluorescence) is a powerful technique for elemental analysis with a high sensitivity. The resolution is presently limited by the size of the primary excitation X-ray beam. A test-bed for confocal-type XRF has been developed to estimate the ultimate lateral resolution which could be reached in chemical mapping using this technique. A polycapillary lens is used to tightly focus the pri...

Food surface texture measurement using reflective confocal laser scanning microscopy.

Confocal laser scanning microscopy (CLSM) was used in the reflection mode to characterize the surface texture (roughness) of sliced food surfaces. Sandpapers with grit size between 150 and 600 were used as height references to standardize the CLSM hardware settings. Sandpaper particle sizes were verified by scanning electron microscopy (SEM). The mean amplitude (in micrometers) of surface varia...

3D Temperature Measurement in IC Chips using Confocal Raman Spectroscopy

We have demonstrated the feasibility of depth and surface temperature measurements in active areas of semiconductor devices using confocal Raman spectroscopy. Using micro heaters, we created a 3D temperature profile across micron size volume. We determined the temperature profile with sub-micron resolution and obtained good agreement with calculations. Theoretical uncertainty in temperature det...