Two pillars of enhanced photoemission
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E. M. Purcell (1912 - 1997) |
Prof. Klaus Petermann |
- Purcell factor: spontaneous emission enhancement due to small mode volume
- Petermann factor: excessive spontaneous emission due to astigmatism (non-orthogonality of modes)
- Both can enhance photoemission greatly.
Last updated: February 25, 2014