Measurement of nonlinear refraction using a reversal 4f coherent imaging system with phase objects |
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| Authors: | Junyi Yang Xueru Zhang Yuxiao Wang Changwei Li Min Shui Xiao Jin |
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| Affiliation: | School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China |
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| Abstract: | A reversal 4f coherent imaging system with phase objects is presented to measure nonlinear refraction of the materials. The modified system can increase the sensitivity compared with the conventional nonlinear-imaging technique with phase objects. The sensitivity enhancement of the modified system is about two times greater than the conventional technique within 0 ≤ ΔφNL ≤ 1. CS2 is used to demonstrate the measurement using the reversal 4f coherent imaging system with phase objects. |
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| Keywords: | Nonlinear refraction 4f imaging system Phase object |
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