Title :
A high performance MM-wave electron spin resonance spectrometer
Author :
Smith, G.M. ; Lesurf, J.C.G. ; Mitchell, R.H. ; Riedi, P.C.
Author_Institution :
Dept. of Phys. & Astron., St. Andrews Univ., UK
Abstract :
We describe a novel millimetre-wave electron spin resonance (ESR) spectrometer designed to operate in the frequency range 90-200 GHz and in the temperature range 1.5 K-270 K. The spectrometer uses a bimodal reflection cavity coupled to a circular corrugated guide and uses Gaussian quasi-optics for most of the front-end signal processing. This technique has very low insertion loss and allows a number of sophisticated measurement techniques to be employed including induction operation and illumination by both circular polarisation states.<>
Keywords :
EPR spectrometers; cavity resonators; circular waveguides; millimetre wave spectroscopy; 1.5 to 270 K; 90 to 200 GHz; Gaussian quasi-optics; bimodal reflection cavity; circular corrugated guide; circular polarisation states; electron spin resonance spectrometer; front-end signal processing; induction operation; insertion loss; measurement techniques; millimetre-wave ESR spectrometer; Frequency; Insertion loss; Lighting; Measurement techniques; Paramagnetic resonance; Reflection; Signal design; Signal processing; Spectroscopy; Temperature distribution;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406300
