Reasons why beam splitters affect aesthetics

Diffractive beam splitter lenses are often employed in such laser skin treatments to generate an array of spots with precise separations, allowing the aesthetic doctor to cover larger areas of the patient's skin with a single pulse, making treatment faster and more accurate. Multi-spot diffractive beam splitters are especially efficient for aesthetic skin treatments. It is a crucial part of many optical experimental and measurement systems, such as interferometers, also finding widespread application in fibre optic telecommunications. Even though a beam splitter generates multiple output beams from a single beam, the characteristics of these beams do not change—only the angle of propagation and power change in the. [pdf]