Questions and explanations
- TPA is much more significant than linear absorption
- There are more than 1 channel of TPA besides 2 UV photon
- The 1 UV + 1 visible TPA is quite significant
- explains why CLBO(180nm) outperform BBO(189nm), and possibly CBO(170nm) outperforms CLBO, and LBO(160nm) outperforms CBO?
- Need to fully characterize the TPA cross sections for different TPA channels