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

fYear

1995

fDate

16-20 May 1995

Firstpage

1677

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1995., IEEE MTT-S International

Conference_Location

Orlando, FL, USA

ISSN

0149-645X

Print_ISBN

0-7803-2581-8

Type

conf

DOI

10.1109/MWSYM.1995.406300

Filename

406300