Frequency up-conversion of an infrared image via a flat-top pump beam
Abstract
The infrared imaging detection is an important and promising technology having wide applications. In this work, we report on the frequency up-conversion detection of an image based on sum frequency generation in a nonlinear crystal with a flat-top beam acting as the pump instead of a Gaussian beam, the up-converted image at 525 nm falls in the sensitive band of visible detectors and human eyes. Both theoretical simulations and the experimental results clearly demonstrate that using a flat-top beam as a pump can improve the fidelity of an image after the up-conversion compared with a Gaussian pump beam. Our scheme will be very promising for infrared image detection based on frequency up-conversion.
Keywords
Cite
@article{arxiv.1912.11823,
title = {Frequency up-conversion of an infrared image via a flat-top pump beam},
author = {Chen Yang and Shi-Long Liu and Zhi-Yuan Zhou and Yan Li and Yin-Hai Li and Shi-Kai Liu and Zhao-Huai Xu and Guang-Can Guo and Bao-Sen Shi},
journal= {arXiv preprint arXiv:1912.11823},
year = {2020}
}
Comments
7 pages, 4 figures, accepted by Optics Communications