149
edits
No edit summary |
No edit summary |
||
|
--[[User:Zjsimmons|Zjsimmons]] ([[User talk:Zjsimmons|talk]]) 17:47, 9 February 2015 (CST)
OK, spent a little time today with the He. Some observations:
*spectral hole width depends on burning power. Green power of a few uW is sufficient to create noticeable features in the absorption. But what about burning all the way through, etc. hard to see as you don't really get much fluorescence when you try and scan with low power..
*We don't have our pump AOM in the right spot, we'll have to put it in after the control AOM in the control beam path if we want to get the correct spacing.
*Overall population MAY be decreasing, this would make sense if population was accumulating in the other hyperfine state, we should get the other AOM set up to investigate this.
Lots of things to get sorted out. Also, thinking about building a laser better suited to wide scanning...
--[[User:Zjsimmons|Zjsimmons]] ([[User talk:Zjsimmons|talk]]) 18:46, 6 February 2015 (CST)
Week in review. It's been an exciting week, we're finally doing some science! after spending a lot of time building things.
| |||