DPSS Lasers and Second Harmonic Generation (Patreon)

Make Lasers Change Color! DPSS Lasers and Second Harmonic Generation (Frequency doubling)

With powerful enough lasers, the world starts behaving very differently. Using a nonlinear optical process called second harmonic generation you can merge pairs of photons in a laser beam to create a single photon with twice the energy. This means that one color of light is turned into another. In practice this is done with infrared lasers which when shot through a special crystal merge to form a color like blue or green depending on the setup. The laser I'm using I got online for less than $100, but it contains a 2.5w IR (808nm) laser, and a 50-100mw blue (473nm) laser. The machine itself is also a decommissioned Raman spectroscope, which I'll be trying to repair. __________________________________________________________________ Subscribe to styropyro: https://www.youtube.com/channel/UCJYJgj7rzsn0vdR7fkgjuIA __________________________________________________________________ Interested in some sweet science themed designs for your wardrobe or wall? Click the link below to see all the great items currently being offered: https://www.redbubble.com/people/chironex?asc=u __________________________________________________________________ Want to support the show and my research? Check out my patreon at: https://www.patreon.com/thethoughtemporium __________________________________________________________________ My Social Media Pages: Instagram: https://www.instagram.com/thethoughtemporium/ Facebook: https://www.facebook.com/thethoughtemporium/ Twitter: https://www.twitter.com/TTEchironex Website: http://thethoughtemporium.com/ __________________________________________________________________ As always, thanks to my awesome Patrons for helping to make these video possible. Thanks to: -John De Witt -Paul Emmerich -Terry Fuller -Jason Dunham -Anita Fowler -Jonas Abreu -Alex Lemna -Orotusso -Cataract bumblesnatch -Ben krasnow -Justin Hendryx -Oliver -Alexandre Guhur -Ben davis