I'm looking for a cheap deep UV laser for a school physics project (quantum, entangled photons). It needs to be below 350nm since the beam will be going through a β-Barium Borate (BBO) crystal which splits the beam into two of half the energy each (i.e. double the wavelength) and I want those exiting beams to be visible to the eye (i.e. max 700nm).
This is a high school project for my daughter on a low budget. The BBO is already expensive at a couple of hundred dollars although we may try to grow our own. However I cannot find any deep UV lasers that do not cost several thousand dollars. These are typically 213nm, 224nm, 248nm, 266nm, 272nm, 280nm, 325nm, 355nm etc. Here is an example of prices:
beamq.com/dpss-laser-solid-266nm400nm-uv-c-66_103.html
In contrast, I was hoping to find something from Sanwu, Jetlasers or even AliExpress, eBay, DX, DHGate, Banggood etc for a lot less, hopefully a couple of hundred dollars.
Are we not there yet in terms of cheaper technology...?
This is a high school project for my daughter on a low budget. The BBO is already expensive at a couple of hundred dollars although we may try to grow our own. However I cannot find any deep UV lasers that do not cost several thousand dollars. These are typically 213nm, 224nm, 248nm, 266nm, 272nm, 280nm, 325nm, 355nm etc. Here is an example of prices:
beamq.com/dpss-laser-solid-266nm400nm-uv-c-66_103.html
In contrast, I was hoping to find something from Sanwu, Jetlasers or even AliExpress, eBay, DX, DHGate, Banggood etc for a lot less, hopefully a couple of hundred dollars.
Are we not there yet in terms of cheaper technology...?