Why not? It's concentrated light in the the red spectrum...
Here's what I did... I have a scrawny 4" 5 week old that is already reveging due to need to harvest. I'm putting light all over the leaves for 2 minutes a day. I'll take a photo tomorrow to show what it did just from today - I'm thinking there won't be any change...

If the plant burns up... Oh well.

It's all about experimenting and keeping good records... Which I'll do with these.

Call me crazy, but don't call me lazy

What if it turned out real well doing the laser on some flowers?