Point source terahertz optics

Fattinger, Ch.; Grischkowsky, D.
October 1988
Applied Physics Letters;10/17/1988, Vol. 53 Issue 16, p1480
Academic Journal
We demonstrate an ultrafast 10 μm sized, electric dipole source of terahertz radiation closely coupled to a 1 cm spherical mirror. This optical approach has the advantages of subpicosecond response times with essentially complete collection efficiency. Using this technique, we have generated and detected subpicosecond freely propagating electrical pulses.


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