Lasers! Clearly they are awesome — but how do they work, exactly? Why aren’t we all carrying them around in our pockets? Well, believe it or not, you probably are — thanks to modern electronics.

Some people get tattoos as a way of fashion or self-expression, but there are also disadvantages, such as not being able to undergo MRI scans or being denied access to hot springs. The science-based ...

There are many different types of lasers—almost as many as there are applications for the same—but what ties them all together as a class is that they depend on the same physical effect: stimulated ...

The basis of a solid-state diode laser is, of course, the diode. Laser diodes can have different emission wavelength—most of them have between 405 nm to 808 nm. The diodes usually have TO3, TO5, TO9, ...