Abstract
A theoretical rate-equation analysis is presented to investigate the molecular properties that are important for achieving high-fluence optical limiting. Critical conditions for achieving induced absorption are derived in terms of the material and laser parameters by employing a range of hierarchical energy-level models. The influences of stimulated emission and saturation of the excited-state absorption are seen to induce the regime of optical limiting to one of increasing transmittance. This is in direct agreement with recent experimental measurements.
| Original language | English |
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| Pages (from-to) | 3546-3552 |
| Number of pages | 7 |
| Journal | Physical Review A |
| Volume | 54 |
| Issue number | 4 |
| Publication status | Published - 1996 |