Fig. 1. On-chip Bessel Gaussian beam generator. (IMAGE)

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

Fig. 1. On-chip Bessel Gaussian beam generator.

Caption

a Optical microscope image for an integrated photonic chip used as a Bessel Gaussian beam generator. The inset is a surface image captured when the laser light is emitted from the chip. b Enlarged view of local grating arrays in the photonic chip and Scanning electron microscope (SEM) image of the grating arrays. c Simulated intensity distribution of far-field from the grating emitters. d Experimentally measured BGb profile at 5.91 m. e One-dimensional intensity distribution of light field at 5.91 m.

Credit

by Zihao Zhi, Quanxin Na, Qijie Xie, Baisong Chen, Yingzhi Li, Xiaobin Liu, Xuetong Li, Lijun Wang, Guo-qiang Lo and Junfeng Song

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.