1. Department of Physics, Universiti Putra Malaysia, Malaysia 2. School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, United Kingdom * Corresponding author
A quick, simple and inexpensive method of profiling the focused beam from terahertz quantum cascade laser (THz QCL) is presented. Using knife edge technique beam width and astigmatism of the THZ QCL imaging system have successfully been obtained.
Journal Pf Physics E(1972), Volume 22, pp. 3406-3410
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