We tested the hypothesis that polarization sensitive optical and terahertz imaging may be combined for accurate nonmelanoma skin cancer (NMSC) delineation. Nine NMSC specimens were imaged. 513 μm and 440 nm wavelengths were used for terahertz and optical imaging, respectively. Histopathology was processed for evaluation. Terahertz reflectance of NMSC was quantified. Our results demonstrate that...

The further spatial reduction together with stringent thickness and composition tolerances in manufacturing of advanced electronic and optical devices require new approaches to control the growth process as well as to improve the insight into the deposition process itself. The development of non-invasive, real-time, structure-specific analytical tools for characterizing phenomena occurring at s...

in this study, the effect of grain size on nitrogen diffusion into ck45 has been investigated. in order to obtain different grain sizes, samples were annealed and normalized at various temperatures and durations.the grain size was determined with clemex vision software. then, the specimens were exposed to dc plasma nitriding treatment and again analyzed by optical microscope ,scanning electron ...

Scientists have long dreamt of an optical microscope that can be used to see a sample in nanometre resolution. Because light propagates through water and air, an optical microscope can be used to see, in vivo, the details of living matter and other materials in their unperturbed natural condition. In addition, an optical microscope provides colour images that contain much richer information tha...

Optical microscopy is a simple, yet essential, imaging technology. Conventional laboratory-grade optical microscopes are bulky and costly, confining their use to within laboratory settings and restricting their accessibility in regions of limited resources. With the aim of overcoming these limitations, we have realized a portable, low-cost, and highly automated optical microscope that integrate...

Abstract Guangzhou Tongcao paintings in Qing Dynasty of China witnessed the exchange economy, culture, art and technology between foreign countries, which were an important export product historical China. In this paper, by using Optical Stereo Microscope, Polarized Light Scanning Electron Microscope attached Energy Dispersive Spectroscopy micro confocal laser Raman Spectroscope, a painting wit...

Polymer based phase change materials (PCM) for thermal energy storage (TES) applications have gained some attention recently due to their high stability and potential solid transition. Here, we are the first utilize a simple copolymerization strategy static tunability transition temperature (Tt) of polymeric PCM. The between short long side chain polyethylene glycol methacrylate polymers was de...

We demonstrate a new method whereby near-field optical microscope resolution can be extended to the nanometer regime. The technique is based on measuring the modulation of the scattered electric field from the end of a sharp silicon tip as it is stabilized and scanned in close proximity to a sample surface. Our initial results demonstrate resolution in the 3 nm range--comparable to what can be ...

An important property of electromagnetic fields, which arises from the interaction between fields and chiral molecules, is called optical chirality. By enhancing this field property, while maintaining constant input power, we are able to increase absorption of circularly polarized light by chiral molecules of a certain handedness. This enhancement is achieved through the use of achiral plasmoni...