Title :
Measuring vortex charge with a triangular aperture
Author :
De Araujo, Luís E E ; Anderson, Matthew E.
Author_Institution :
Inst. de Fis. Gleb Wataghin, Univ. Estadual de Campinas, Campinas, Brazil
Abstract :
We measure the charge of vortex beams (up to ±7) via diffraction in a triangular aperture. We also apply this technique for measuring femtosecond vortices and non-integer vortices. The results compare favorably with numerical modeling.
Keywords :
laser beams; light diffraction; numerical analysis; optical vortices; femtosecond vortices; noninteger vortices; numerical modeling; triangular aperture; vortex beams; vortex charge measurement; Apertures; Charge measurement; Diffraction; Laser beams; Lenses; Measurement by laser beam; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
