Lasers are known for the monochromatic nature of their light, so much so that you might never have thought there could be such a thing as a white laser. But in the weird world of physics ...

A hiker was baffled by a bizarre column of light shooting upwards into the sky from a mountaintop in China. Holidaymaker Ms Zhao was visiting her relatives in Zixing, Hunan, when she saw the ...

Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.

In celebration of Super Bowl LIX, laser light projections will illuminate St. Louis Cathedral and other Jackson Square landmarks ...

The TEM 00 beam has M 2 < 1.2, a vertical polarization of more than 300:1, a beam waist diameter of 230 μm ± 30 μm, a beam divergence of <2.6 milliradians, a beam roundness of >90%, and an ...

You will learn about semiconductor light-emitting diodes (LEDs) and lasers, and the important rules for their analysis, planning, design, and implementation. You will also apply your knowledge through ...

Selective photothermolysis is the fundamental principle underlying the low-risk laser treatment of vascular lesions, pigmented lesions, and tattoos. Melanin, the main chromophore in most epidermal ...

This important classification allows for the appropriate selection of laser wavelengths in treatment considerations.