Experimentally observed vortex beam generation (IMAGE) Science China Press Caption (a) Beam profiles and interference fringes at different working wavelength; (b) Vortex beam generation with different incident position. Credit ©Science China Press Usage Restrictions Use with credit. License Original content 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.