Figure 3 | Application of collimation mode in directional radiator. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 3 | Application of collimation mode in directional radiator.

Caption

a, antenna array embedded in the device, inset: cell of the array; b, optical field intensity versus uy for far-field projection (yellow line is the collimated light, purple line is the uncollimated light, with ux = 0.185); c, far-field projection of guided wave without collimation; d, far-field projection of guided wave after collimation by our metalens, with the spot focused at 10°; e, f, uncollimated and collimated guided wave in far-field projection, wavelength versus offset angle (uy = 0).

Credit

by Yingli Ha, Lijun Wang, Yinghui Guo, Mingbo Pu, Fang Zou, Xiong Li, Yulong Fan, Xiaoliang Ma, and Xiangang Luo

Usage Restrictions

Credit must be given to the creator.

License

CC BY

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.