If a Nd:YAG laser can only produces 1064 nm light… where do all the other wavelengths come from?

It’s an excellent question. Most laser users know that a KTP crystal converts 1064 nm into 532 nm by “frequency doubling”. But what about the other wavelengths—585 nm, 650 nm and the various colours advertised by some manufacturers? Is the laser somehow producing entirely new wavelengths? Well… yes. But not quite in the way many… Continue reading If a Nd:YAG laser can only produces 1064 nm light… where do all the other wavelengths come from?

All our podcast episodes to date….

We launched our podcast ‘Lasers in Skin‘ back in Febraury 2025. Since then, we’ve published 41 episodes and had over 13,000 listens – no bad! Onwards and upwards… To let you find an episode easily, I have generated links to the Apple and Spotify platforms: 🔗 Lasers in Skin on Apple Podcasts🔗 Lasers in Skin on Spotify… Continue reading All our podcast episodes to date….

Laser safety glasses – what does ‘DIRM’ mean?

You know I keep banging on and on about safety glasses and how important they are (you only have one pair of eyes!!). I have written a number of times about this topic and how to understand the text on your safety glasses (https://mikemurphyblog.com/2024/02/29/laser-safety-glasses-and-how-to-read-them/). Yet, I find that people still don’t know much about this… Continue reading Laser safety glasses – what does ‘DIRM’ mean?