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What are Light Emitting Diodes? Light emitting diodes, namely LEDs, refer to a type of solid state lighting device based on various doped semiconductor materials. Invented in early twentieth century, light ...

Ultrafast amplifiers are devices that can boost the pulse energy and the average powers of ultrashort pulse trains. While the prospect of applying ultrafast amplifiers on laser systems is appealing, it ...

Ever since x-ray was first discovered by Sir Wilhelm Röntgen, scientists have started the enthusiastic exploration of its potential for imaging applications. Among all the sub-fields, x-ray microscopy has ...

A Dilemma of Choices If you are suffering from vision degradation like myopia, hyperopia and astigmatism, you are probably considering LASIK (laser-assisted in situ keratomileusis) cornea surgery, so as to ...

What is Laser Reliability? Ever since its creation, laser, the “sacred lightsaber”, has become a secret weapon to unravel the cutting-edge problems in numerous scientific and engineering fields. The ...

Infrared imaging is a technique that detects thermal radiation and produces images of heat distribution and fluctuation. Due to the black body radiation law, all the objects with a temperature higher than ...

Graphene (a form of fullerene) is a nanomaterial that has been attracting significant interest as a potential game changer for various applications. Energy storage, flexible transparent displays and ...