"It is important to note that extremely high power densities are achieved at the focal point of a concentrated laser beam. A 10-milliwatt beam focused to a diffraction-limited spot 0.22 micrometers in diameter results in a power density of approximately 30-million watts per square centimeter. Such high energy levels can rapidly degrade or destroy lens and filter coatings, as..."
Never would have guessed that much.
Link http://www.olympusfluoview.com/theory/confocallaserintro.html
Never would have guessed that much.
Link http://www.olympusfluoview.com/theory/confocallaserintro.html
