HiPER Pulsed ESR Optics
Quasi-optics for Pulsed 94 GHz ESR
The St Andrews 1nS dead time HiPER 94 GHz ESR Spectrometer is starting to produce results which demonstrate the power of such high pwers short deadtime pulsed ESR mm-wave pectometer.
Thomas Keating is part of the HiPER partnership lead by Dr Graham Smith at St Andrews, to construct a pulse ESR spectrometer at 94GHz with single nanosecond pi/2 pulses and nanosecond dead-times with GHz detection bandwidths, incorporating phase cycling that will permit multi-dimensional, multi-resonance experiments including 2-D ESR, 2-D ENDOR, 2-D ELDOR, 2-D ESEEM, and to integrate the system with a state-of-the-art ultra-fast pulse laser facility that already exists at St Andrews.
There are details set out in the RSI article on the Spectrometer
TK - in particular Stuart Froud and Trevor Walker - were responsible for the mechanical design and manufacture of the very low loss, high isolation Quasi-Optics, seen in the Photographs below: