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Chapter and Conference Paper
Shell Formation in Ngc 474
We present broad band photometry (B and R) of the classic shell galaxy NGC 474. Preliminary results indicate that the shells have a similar colour to and follow the same trend of colour with radius as the unde...
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Chapter
Difference frequency mixing via spin nonlinearities in the far-infrared
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Chapter
Tunable Far-Infrared Generation by Difference-Frequency Mixing in Indium Antimonide
A strong resonant optical nonlinearity due to the conduction electron spins has been observed when the frequency (~100 cm−1) of far-infrared (FIR), generated by difference frequency mixing of two orthogonally pol...