The Quest for White Laser Beams

12676339_SThere are many different types of laser beams out there – some more powerful than other ones, some more elusive.

The white laser beam, for instance, are (or should we say were) the Holy Grail of lasers.

This is so for a number of reasons; the main one being that white laser beams could potentially be alternative light sources.

We also want to stress that they would not be your average light source, but rather a more energy efficient one.

And by energy efficient, we really mean it; white lasers are more potent than LEDs in terms of energy, not to mention they have the ability to cover nearly 70 percent more colors that whatever is on the market today.

In other words, white lasers are the future of lighting and that has us at Seiffert Industrial very excited – and that Holy Grail has finally been discovered by researchers from the Arizona State University Ira A. Fulton Schools of Engineering, as discussed in this article from the International Business Times.

Guneet Bhatia writes that researchers “devised an innovative nanosheet, which is a thin semiconductor that can be comparable to one-fifth of human hair in thickness.

  • The said device is composed of three parallel sections, each of which has a primary color to support in terms of laser action.
  • The researchers have indeed proven that semiconductor lasers can emit over the entire range of visible color, which is the key feature needed to generate white light.”

That might sound like tech talk, but the long and short of it is that researchers have developed a device able to emit the color white.

For the past few decades, lasers have been able to emit every wavelength of light except for white, so researchers had to work around this by manufacturing multiple semiconductors then lining them up parallel to one another.

By emitting a primary color, the three semiconductors are able to combine to form the color white.

This is most definitely a breakthrough and many are salivating at the possibility of what white lasers can do, including being used in Li-Fi technology, which uses light as the foundation for high-speed wireless internet access.

If that doesn’t sound like the future – using lasers to search the World Wide Web – we don’t know what is!