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Comparison of -scan method and PROM protocol.
| scan | PROM | |
|---|---|---|
|
| ||
| Kerr coefficient | Small, constant | Smooth function of intensity |
| Sample position | Variable, through focal region | Fixed, at focus |
| Detector position | Far field | A few planes such as , 1, and 2 |
| Detector | Single channel | Array |
