Title :
Three-dimensional characterisation of the non-gaussian focused beam from a terahertz quantum cascade laser
Author :
Dean, P. ; Shaukat, M.U. ; Linfield, E.H. ; Davies, A.G.
Author_Institution :
Institute of Microwaves and Photonics, University of Leeds, Woodhouse Lane, LS2 9JT, UK
Abstract :
A fast, accurate technique for the three-dimensional characterisation of terahertz beams is presented. Using gold-on-glass resolution targets the beam profile, depth of focus and astigmatism of a quantum cascade laser-based imaging system have been measured.
Keywords :
Biomedical optical imaging; Focusing; Frequency; Image resolution; Laser beams; Optical imaging; Optical sensors; Quantum cascade lasers; Sampling methods; Vision defects;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431355
