| Autor: |
Poteomkin, Anatoly K., Mal’shakov, Anatoly N., Andreev, Nikolay F., Reitze, David H. |
| Zdroj: |
Journal of the Optical Society of America B: Optical Physics; April 2002, Vol. 19 Issue: 4 p650-655, 6p |
| Abstrakt: |
Results of the use of self-focusing in Kerr liquids for the measurement of small wave-front distortions transmitted through a transparent optical sample are presented. Using controlled self-focusing to decrease the spot size of the deflected beam, we have been able to improve the measurement resolution by an order of magnitude compared with that achieved with a conventional Hartmann detector. We examine a variety of materials to determine the optimal nonlinear medium and demonstrate measurements of absolute wave-front deviations at the level of λ/3000. A prototype of a new device, the scanning nonlinear Hartmann sensor, is described. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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