AI Article Synopsis
- The proposed device measures wavefront distortions with high sensitivity using continuous position sensitive detectors, eliminating the need for reconstruction processes.
- Experimental results show its effectiveness in detecting small refractive index changes in laser materials induced by pump effects.
- The device also successfully identifies phase discontinuities and enhances measurements of sharp phase variations when compared to traditional Shack-Hartmann methods.
Article Abstract
We propose a new device that is able to perform highly sensitive wavefront measurements based on the use of continuous position sensitive detectors and without resorting to any reconstruction process. We demonstrate experimentally its ability to measure small wavefront distortions through the characterization of pump-induced refractive index changes in laser material. In addition, it is shown using computer-generated holograms that this device can detect phase discontinuities as well as improve the quality of sharp phase variations measurements. Results are compared to reference Shack-Hartmann measurements, and dramatic enhancements are obtained.
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| http://dx.doi.org/10.1364/AO.52.008310 | DOI Listing |
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