Unconventional spiral phase elements : design and application

• Main Author: Zhang, Ning
• Other Authors: Yuan Xiaocong
• Format: Theses and Dissertations
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/48019
• Institution: Nanyang Technological University

Optical vortex (OV), also known as helical beam and optical singularity, is a specific mode of laser beam having a phase term of exp(ilφ), here l stands for the topological charge of the OV and φ is the azimuthal angle of the polar coordinates. This phase structure results in an intensity zero and a...