Lasers at the Joss Research Institute

• A straightforward nitrogen laser design intended for DIY folks

  (I am currently working on a more advanced design; I will post a link here when I have a working machine and a page about it.)
  
  

• An unhappy discussion of the Scientific American “Amateur Scientist” nitrogen laser or, to be more accurate, of Jim Small’s explanation of how it works.
  
  
• Rebuilding a damaged Avco-Everett C5000 nitrogen laser head that we acquired surplus on eBay
  
  
• Testing and using a surplus Molectron [low-pressure] nitrogen laser, also acquired on eBay (includes some information about tuning organic dyes that you are pumping with the nitrogen laser)
  
  
• Repairing, checking, and using a PRA LN-1000 [TEA] nitrogen laser, also acquired on eBay, with a note about tuning organic dyes under TEA-N2 pumping
  
  
• A bit more information about nitrogen-pumping organic dye lasers
  
  
• A “photographic tuning curve” for 4-Methyl-Umbelliferone, pumped by a low-pressure nitrogen laser
  
  
• A photographic tuning curve for 7-Diethylamino-4-Methyl-Coumarin, under flashlamp pumping
  
  
• A flashlamp-pumped organic dye laser that I built primarily from parts we acquired on eBay, with a photographic tuning curve for Rhodamine 6G

Please see The page of Research Reports for more information.

Contact Information:

Email: a@b.com, where you can replace a with my first name (jon, only 3 letters, no “h”) and b with joss.

Phone: +1 240 604 4495.

Last modified: Tue Mar 27 12:16:34 EST 2007