- TL;DR Summary
- I'm trying to generate entangled photons using a KTP laser pointer.
I've been trying to generate entangled photons using KTP laser pointer that normally produces green light at 532 nm. I was hoping that after removing the IR filter, I could add a reflective coating (right now the coating I have is a glittery metallic green nail polish) to reflect the green light and mix with the IR light to essentially create a optical parametric amplifier and produce entangled light that way. Unfortunately, now that the filter has been removed, it looks like it's only producing IR light. Are there any possible solutions? I think the laser pointer is pulsed if that makes a difference with the production of green light.